Jer 50:1 The word that the LORD spake against Babylon and against the land of the Chaldeans by Jeremiah the prophet.
If you follow the names of the Gentile nations to be judged in Jeremiah 25, the king of Babylon is the very last one to receive the Judgment, also known as Sheshach, a Hebrew code name for Babylon.
This is also the 50th prophecy of Jeremiah in addition to the 50th chapter, which affixes the meaning of pentecost to this chapter, which naturally is when the people will 
prophecy against satan, the king of Babylon.
Jer 50:2 Declare ye among the nations, and publish, and set up a standard; publish, and conceal not: say, Babylon is taken, Bel is confounded, Merodach is broken in pieces; her idols are confounded, her images are broken in pieces.
Babylon means confusion, Bel is like saying Baal, and Merodach means death.
Jer 50:3 For out of the north there cometh up a nation against her, which shall make her land desolate, and none shall dwell therein: they shall remove, they shall depart, both man and beast.
The spurious messiah will sit in the side of the north, because that is where God’s throne will seat. The nation that comes up against her “Babylon” will historically be the Medes and the Persians, but prophetically the nation that will be born in a day, God’s elect.
Jer 50:4 In those days, and in that time, saith the LORD, the children of Israel shall come, they and the children of Judah together, going and weeping: they shall go, and seek the LORD their God.
The return has not happened yet. First we UPROOT
Jer 1:10 ¶
See, I have this day set thee over the nations and over the kingdoms, to root out, and to pull down, and to destroy, and to throw down, to build, and to plant.
That is four descriptions that must happen FIRST, before Judah is to return with the rest of Israel to the land of Judah, then we plant.
Jer 50:5 They shall ask the way to Zion with their faces thitherward, saying, Come, and let us join ourselves to the LORD in a perpetual covenant that shall not be forgotten.
This is the original covenant made with Abraham. It is a perpetual covenant God made with them in Gen 15:18, definitely both houses of Israel.
Jer 50:6 My people hath been lost sheep: their shepherds have caused them to go astray, they have turned them away on the mountains: they have gone from mountain to hill, they have forgotten their restingplace.
The 10 tribes of Israel are without a doubt totally lost. Even, the other tribes are lost and scattered (Jer 9:16). The mountains symbolize nations, and they have gone from country to country, and have forgotten their true restingplace, our Heavenly Father and His promise that He gave to ALL of Israel.
Jer 50:7 All that found them have devoured them: and their adversaries said, We offend not, because they have sinned against the LORD, the habitation of justice, even the LORD, the hope of their fathers.
The LORD is our only hope. It is His Word that has been passed down from generation to generation from father to father. This is why we should honor our Father and Mother, the 5th commandment. That is to say we should honor them for passing down to us God’s Word, from Generation to generation.
Jer 50:8 Remove out of the midst of Babylon, and go forth out of the land of the Chaldeans, and be as the he goats before the flocks.
Get out of Babylon, Get out of confusion, which is what Babylon means. Use that Word of God passed down from your fathers, their only hope, and preach that before the flocks! This is similar to what will happen at the final Pentecost, when the Spirit of truth speaks through us.
Jer 50:9 For, lo, I will raise and cause to come up against Babylon an assembly of great nations from the north country: and they shall set themselves in array against her; from thence she shall be taken: their arrows shall be as of a mighty expert man; none shall return in vain.
The Mighty Man is a prophecy yet future of what will happen when the Holy Spirit speaks through us, as a perfect expert, happening even on Pentecost Day (as in Acts 2:6-7)
Jer 50:10 And Chaldea shall be a spoil: all that spoil her shall be satisfied, saith the LORD.
God’s elect will see this satisfaction, even though, captivity has been completed on the rest of the people. God’s elect are protected throughout.
Jer 50:11 Because ye were glad, because ye rejoiced, O ye destroyers of mine heritage, because ye are grown fat as the heifer at grass, and bellow as bulls;
God’s heritage is His people (written in Gen 15:18), and satan is the destroyer who told lies about their heritage, “Hath Israel no sons? Hath he no heir?”
Changing the heritage of our people with traditions of men is what has destroyed the truth amongst God’s people, confusing people, and turning everything upside down.
Jer 50:12 Your mother shall be sore confounded; she that bare you shall be ashamed: behold, the hindermost of the nations shall be a wilderness, a dry land, and a desert.
The Mother is the one that nurtures you. In this sense these false religions were nurtured along by her shepherds, and they built it up from scratch. It was their baby, never existing eternally, but a “new thing”, a “new doctrine” nursed along by the mother who bore it.
Jer 50:13 Because of the wrath of the LORD it shall not be inhabited, but it shall be wholly desolate: every one that goeth by Babylon shall be astonished, and hiss at all her plagues.
That’s written in Revelation 17.
Jer 50:14 Put yourselves in array against Babylon round about: all ye that bend the bow, shoot at her, spare no arrows: for she hath sinned against the LORD.
This means God’s people are Warriors! Not deserters or cowards. We are given strength by God Almighty and Words by His Holy Spirit. This is an undefeatable force.
Jer 50:15 Shout against her round about: she hath given her hand: her foundations are fallen, her walls are thrown down: for it is the vengeance of the LORD: take vengeance upon her; as she hath done, do unto her.
Don’t just “whisper” around we are to SHOUT the truth. We aren’t to hide from Babylon, but go before her boldly and IN the Word of truth. She is going to receive the truth like a sword, as she cut them all down into spiritual death.
Jer 50:16 Cut off the sower from Babylon, and him that handleth the sickle in the time of harvest: for fear of the oppressing sword they shall turn every one to his people, and they shall flee every one to his own land.
There will not be allowed any sowing of false doctrine anymore. That every he- goat, that is to say leader of his people will lead into truth.
Jer 50:17 Israel is a scattered sheep; the lions have driven him away: first the king of Assyria hath devoured him; and last this Nebuchadrezzar king of Babylon hath broken his bones.
From God’s perspective, He sees the HOUSE of Israel, His chosen people, and their downfall from grace. Having been chased away by lions, and devoured (the flesh) by the Assyrian, and finally finished off by the King of Babylon. In Hebrew the word “devoured” is to have their flesh consumed, but even more the King of Babylon breaks the bones and destroys every remnant of their heritage, as explained in verse 11 of this same chapter. Taken spiritually, this is how complete spiritual death that happens when satan arrives to deceive the people.
Jer 50:18 Therefore thus saith the LORD of hosts, the God of Israel; Behold, I will punish the king of Babylon and his land, as I have punished the king of Assyria.
God will finish this, just as He promised.
Jer 50:19 And I will bring Israel again to his habitation, and he shall feed on Carmel and Bashan, and his soul shall be satisfied upon mount Ephraim and Gilead.
This of course, has not happened yet. It will happen at the 7th trump, when God returns to the earth.
Jer 50:20 In those days, and in that time, saith the LORD, the iniquity of Israel shall be sought for, and there shall be none; and the sins of Judah, and they shall not be found: for I will pardon them whom I reserve.
At this time when Judah and Ephraim are in Jerusalem, at the 7th trump, there will not be found any sins among them!
Jer 50:21 Go up against the land of Merathaim, even against it, and against the inhabitants of Pekod: waste and utterly destroy after them, saith the LORD, and do according to all that I have commanded thee.
Merathaim means “double rebellion”, Pekod means “visitation”, and God will visit!
Jer 50:22 A sound of battle is in the land, and of great destruction.
Jer 50:23 How is the hammer of the whole earth cut asunder and broken! how is Babylon become a desolation among the nations!
Because of the leaders and the Holy Spirit, is how they have been broken.
Jer 50:24 I have laid a snare for thee, and thou art also taken, O Babylon, and thou wast not aware: thou art found, and also caught, because thou hast striven against the LORD.
They are caught, because their traditions don’t hold water, and cannot save them. Their babies they’ve been nurturing along will not hold water either!
Jer 50:25 The LORD hath opened his armoury, and hath brought forth the weapons of his indignation: for this is the work of the Lord GOD of hosts in the land of the Chaldeans.
The seven vials is where the armoury is found, our sword of the LORD!
Jer 50:26 Come against her from the utmost border, open her storehouses: cast her up as heaps, and destroy her utterly: let nothing of her be left.
Take those lies, and false teachings and cast them down to the ground to be burnt into smoke.
Jer 50:27 Slay all her bullocks; let them go down to the slaughter: woe unto them! for their day is come, the time of their visitation.
It is written in Revelation as WOE, WOE, WOE, for the deceiver is cast down upon the earth!