I used to think I knew about the threshing floor but had never studied it out for myself. So did a little study this morning.
The words “threshing floor” does not exist in the KJV Bible. However you can find that phrase in the NIV Bible. However the word “threshingfloor” is found in the KJV but is not separated.
Here is the Hebrew word for “threshingfloor” and all the verses in the KJB where this particular form is used.
This word (goren) can mean any open area with a smooth floor as a barn floor, corn floor threshing floor.
goren, go'‑ren, Hebrew 1637; from an unused root meaning to smooth; a threshing‑floor (as made even); by analogy any open area :‑ (barn, corn, threshing‑) floor, (threshing‑, void) place.
Genesis 50:10‑11 - And they came to the threshingfloor of Atad, which is beyond Jordan, and there they mourned with a great and very sore lamentation: and he made a mourning for his father seven days.  And when the inhabitants of the land, the Canaanites, saw the mourning in the floor of Atad, they said, This is a grievous mourning to the Egyptians: wherefore the name of it was called Abel‑mizraim, which is beyond Jordan.
Numbers 15:20 - Ye shall offer up a cake of the first of your dough for an heave offering: as ye do the heave offering of the threshingfloor, so shall ye heave it.
Numbers 18:27 - And this your heave offering shall be reckoned unto you, as though it were the corn of the threshingfloor, and as the fulness of the winepress.
Numbers 18:30 - Therefore thou shalt say unto them, When ye have heaved the best thereof from it, then it shall be counted unto the Levites as the increase of the threshingfloor, and as the increase of the winepress.
Deut. 15:14 - Thou shalt furnish him liberally out of thy flock, and out of thy floor, and out of thy winepress: of that wherewith the LORD thy God hath blessed thee thou shalt give unto him.
Deut. 16:13 - Thou shalt observe the feast of tabernacles seven days, after that thou hast gathered in thy corn and thy wine:
Judges 6:37 - Behold, I will put a fleece of wool in the floor; and if the dew be on the fleece only, and it be dry upon all the earth beside, then shall I know that thou wilt save Israel by mine hand, as thou hast said.
Ruth 3:2‑3 - And now is not Boaz of our kindred, with whose maidens thou wast? Behold, he winnoweth barley to night in the threshingfloor.  Wash thyself therefore, and anoint thee, and put thy raiment upon thee, and get thee down to the floor: but make not thyself known unto the man, until he shall have done eating and drinking.
Ruth 3:6 - And she went down unto the floor, and did according to all that her mother in law bade her.
Ruth 3:14 - And she lay at his feet until the morning: and she rose up before one could know another. And he said, Let it not be known that a woman came into the floor.
1 Samuel 23:1 - Then they told David, saying, Behold, the Philistines fight against Keilah, and they rob the threshingfloors.
2 Samuel 6:6 - And when they came to Nachon's threshingfloor, Uzzah put forth his hand to the ark of God, and took hold of it; for the oxen shook it.
2 Samuel 24:16 - And when the angel stretched out his hand upon Jerusalem to destroy it, the LORD repented him of the evil, and said to the angel that destroyed the people, It is enough: stay now thine hand. And the angel of the LORD was by the threshingplace of Araunah the Jebusite.
2 Samuel 24:18 - And Gad came that day to David, and said unto him, Go up, rear an altar unto the LORD in the threshingfloor of Araunah the Jebusite.
2 Samuel 24:21 - And Araunah said, Wherefore is my lord the king come to his servant? And David said, To buy the threshingfloor of thee, to build an altar unto the LORD, that the plague may be stayed from the people.
2 Samuel 24:24 - And the king said unto Araunah, Nay; but I will surely buy it of thee at a price: neither will I offer burnt offerings unto the LORD my God of that which doth cost me nothing. So David bought the threshingfloor and the oxen for fifty shekels of silver.
1 Kings 22:10 - And the king of Israel and Jehoshaphat the king of Judah sat each on his throne, having put on their robes, in a void place in the entrance of the gate of Samaria; and all the prophets prophesied before them.
2 Kings 6:27 - And he said, If the LORD do not help thee, whence shall I help thee? out of the barnfloor, or out of the winepress?
1 Chron. 13:9 - And when they came unto the threshingfloor of Chidon, Uzza put forth his hand to hold the ark; for the oxen stumbled.
1 Chron. 21:15 - And God sent an angel unto Jerusalem to destroy it: and as he was destroying, the LORD beheld, and he repented him of the evil, and said to the angel that destroyed, It is enough, stay now thine hand. And the angel of the LORD stood by the threshingfloor of Ornan the Jebusite.
1 Chron. 21:18 - Then the angel of the LORD commanded Gad to say to David, that David should go up, and set up an altar unto the LORD in the threshingfloor of Ornan the Jebusite.
1 Chron. 21:21‑22 - And as David came to Ornan, Ornan looked and saw David, and went out of the threshingfloor, and bowed himself to David with his face to the ground.  Then David said to Ornan, Grant me the place of this threshingfloor, that I may build an altar therein unto the LORD: thou shalt grant it me for the full price: that the plague may be stayed from the people.
1 Chron. 21:28 - At that time when David saw that the LORD had answered him in the threshingfloor of Ornan the Jebusite, then he sacrificed there.
2 Chron. 3:1 - Then Solomon began to build the house of the LORD at Jerusalem in mount Moriah, where the LORD appeared unto David his father, in the place that David had prepared in the threshingfloor of Ornan the Jebusite.
2 Chron. 18:9 - And the king of Israel and Jehoshaphat king of Judah sat either of them on his throne, clothed in their robes, and they sat in a void place at the entering in of the gate of Samaria; and all the prophets prophesied before them.
Job 39:12 - Wilt thou believe him, that he will bring home thy seed, and gather it into thy barn?
Isaiah 21:10 - O my threshing, and the corn of my floor: that which I have heard of the LORD of hosts, the God of Israel, have I declared unto you.
Jeremiah 51:33 - For thus saith the LORD of hosts, the God of Israel; The daughter of Babylon is like a threshingfloor, it is time to thresh her: yet a little while, and the time of her harvest shall come.
Hosea 9:1‑2 - Rejoice not, O Israel, for joy, as other people: for thou hast gone a whoring from thy God, thou hast loved a reward upon every cornfloor.  The floor and the winepress shall not feed them, and the new wine shall fail in her.
Hosea 13:3 - Therefore they shall be as the morning cloud, and as the early dew that passeth away, as the chaff that is driven with the whirlwind out of the floor, and as the smoke out of the chimney.
Joel 2:24 - And the floors shall be full of wheat, and the fats shall overflow with wine and oil.
Micah 4:12 - But they know not the thoughts of the LORD, neither understand they his counsel: for he shall gather them as the sheaves into the floor.
There are several words in Hebrew for threshing, thresh or threshed:
It can mean a threshing instrument, to trample, break, tear, tread out or down. It can mean to give a “threshing” or down trodden people. I can mean a trench, a sharp toothed threshing sledge or instrument. Or even “sharp” as in diligent, eager, determined etc.. You can see all the meanings below:
mowrag, mo‑rag', Hebrew 4173; or morag, mo‑rag'; from an unused root meaning to triturate; a threshing sledge :‑ threshing instrument.
duwsh, doosh, Hebrew 1758; or dowsh, dosh; or diysh, deesh; a primitive root; to trample or thresh :‑ break, tear, thresh, tread out (down), at grass [Jer. 50:111, by mistake for Hebrew 1877 (deshe')].
medushshah, med‑oosh‑shaw', Hebrew 4098; from Hebrew 1758 (duwsh); a threshing, i.e. (concrete and figurative) down‑trodden people :‑ threshing.
charuwts, khaw‑roots', Hebrew 2742; or charuts, khaw‑roots'; passive participle of Hebrew 2782 (charats); properly incised or (active) incisive; hence (as noun masculine or feminine) a trench (as dug), gold (as mined), a threshing‑sledge (having sharp teeth); (figurative) determination; also eager :‑ decision, diligent, (fine) gold, pointed things, sharp, threshing instrument, wall.
darak, daw‑rak', Hebrew 1869; a primitive root; to tread; by implication to walk; also to string a bow (by treading on it in bending) :‑ archer, bend, come, draw, go (over), guide, lead (forth), thresh, tread (down), walk.
These are the scriptures where this term is used in the Old Testament of the New International Bible:
Genesis 50:10‑11 - When they reached the threshing floor of Atad, near the Jordan, they lamented loudly and bitterly; and there Joseph observed a seven‑day period of mourning for his father.  When the Canaanites who lived there saw the mourning at the threshing floor of Atad, they said, "The Egyptians are holding a solemn ceremony of mourning." That is why that place near the Jordan is called Abel Mizraim.
Numbers 15:20 - Present a cake from the first of your ground meal and present it as an offering from the threshing floor.
Numbers 18:27 - Your offering will be reckoned to you as grain from the threshing floor or juice from the winepress.
Numbers 18:30 - "Say to the Levites: 'When you present the best part, it will be reckoned to you as the product of the threshing floor or the winepress.
Deut. 15:14 - Supply him liberally from your flock, your threshing floor and your winepress. Give to him as the LORD your God has blessed you.
Deut. 16:13 - Celebrate the Feast of Tabernacles for seven days after you have gathered the produce of your threshing floor and your winepress.
Judges 6:37 - look, I will place a wool fleece on the threshing floor. If there is dew only on the fleece and all the ground is dry, then I will know that you will save Israel by my hand, as you said."
Ruth 3:2‑3 - Is not Boaz, with whose servant girls you have been, a kinsman of ours? Tonight he will be winnowing barley on the threshing floor.  Wash and perfume yourself, and put on your best clothes. Then go down to the threshing floor, but don't let him know you are there until he has finished eating and drinking.
Ruth 3:6 - So she went down to the threshing floor and did everything her mother‑in‑law told her to do.
Ruth 3:14 - So she lay at his feet until morning, but got up before anyone could be recognized; and he said, "Don't let it be known that a woman came to the threshing floor."
2 Samuel 6:6 - When they came to the threshing floor of Nacon, Uzzah reached out and took hold of the ark of God, because the oxen stumbled.
2 Samuel 24:16 - When the angel stretched out his hand to destroy Jerusalem, the LORD was grieved because of the calamity and said to the angel who was afflicting the people, "Enough! Withdraw your hand." The angel of the LORD was then at the threshing floor of Araunah the Jebusite.
2 Samuel 24:18 - On that day Gad went to David and said to him, "Go up and build an altar to the LORD on the threshing floor of Araunah the Jebusite."
2 Samuel 24:21 - Araunah said, "Why has my lord the king come to his servant?" "To buy your threshing floor," David answered, "so I can build an altar to the LORD, that the plague on the people may be stopped."
2 Samuel 24:24 - But the king replied to Araunah, "No, I insist on paying you for it. I will not sacrifice to the LORD my God burnt offerings that cost me nothing." So David bought the threshing floor and the oxen and paid fifty shekels of silver for them.
1 Kings 22:10 - Dressed in their royal robes, the king of Israel and Jehoshaphat king of Judah were sitting on their thrones at the threshing floor by the entrance of the gate of Samaria, with all the prophets prophesying before them.
2 Kings 6:27 - The king replied, "If the LORD does not help you, where can I get help for you? From the threshing floor? From the winepress?"
1 Chron. 13:9 - When they came to the threshing floor of Kidon, Uzzah reached out his hand to steady the ark, because the oxen stumbled.
1 Chron. 21:15 - And God sent an angel to destroy Jerusalem. But as the angel was doing so, the LORD saw it and was grieved because of the calamity and said to the angel who was destroying the people, "Enough! Withdraw your hand." The angel of the LORD was then standing at the threshing floor of Araunah the Jebusite.
1 Chron. 21:18 - Then the angel of the LORD ordered Gad to tell David to go up and build an altar to the LORD on the threshing floor of Araunah the Jebusite.
1 Chron. 21:21‑22 - Then David approached, and when Araunah looked and saw him, he left the threshing floor and bowed down before David with his face to the ground.  David said to him, "Let me have the site of your threshing floor so I can build an altar to the LORD, that the plague on the people may be stopped. Sell it to me at the full price."
1 Chron. 21:28 - At that time, when David saw that the LORD had answered him on the threshing floor of Araunah the Jebusite, he offered sacrifices there.
2 Chron. 3:1 - Then Solomon began to build the temple of the LORD in Jerusalem on Mount Moriah, where the LORD had appeared to his father David. It was on the threshing floor of Araunah the Jebusite, the place provided by David.
2 Chron. 18:9 - Dressed in their royal robes, the king of Israel and Jehoshaphat king of Judah were sitting on their thrones at the threshing floor by the entrance to the gate of Samaria, with all the prophets prophesying before them.
Job 39:12 - Can you trust him to bring in your grain and gather it to your threshing floor?
Isaiah 21:10 - O my people, crushed on the threshing floor, I tell you what I have heard from the LORD Almighty, from the God of Israel.
Jeremiah 51:33 - This is what the LORD Almighty, the God of Israel, says: "The Daughter of Babylon is like a threshing floor at the time it is trampled; the time to harvest her will soon come."
Daniel 2:35 - Then the iron, the clay, the bronze, the silver and the gold were broken to pieces at the same time and became like chaff on a threshing floor in the summer. The wind swept them away without leaving a trace. But the rock that struck the statue became a huge mountain and filled the whole earth.
Hosea 9:1 - Do not rejoice, O Israel; do not be jubilant like the other nations. For you have been unfaithful to your God; you love the wages of a prostitute at every threshing floor.
Hosea 13:3 - Therefore they will be like the morning mist, like the early dew that disappears, like chaff swirling from a threshing floor, like smoke escaping through a window.
Micah 4:12 - But they do not know the thoughts of the LORD; they do not understand his plan, he who gathers them like sheaves to the threshing floor.
These are the scriptures where this term is used in the New Testament of the New International Bible:
halon, hal'‑ohn, Greek 257; probably from the base of Greek 1507 (heilisso); a threshing‑floor (as rolled hard), i.e. (figurative) the grain (and chaff, as just threshed) :‑ floor.
Matthew 3:12 - His winnowing fork is in his hand, and he will clear his threshing floor, gathering his wheat into the barn and burning up the chaff with unquenchable fire."
Luke 3:17 - His winnowing fork is in his hand to clear his threshing floor and to gather the wheat into his barn, but he will burn up the chaff with unquenchable fire."
I think basically, it’s not a bad thing to talk things out and discuss it with several different people in a group but to see anything that would show that the “threshing floor” as in GAC is the foundation of Christ’s church, I can find no where.