Isaiah 66:18

¹⁶ For by fire and by his sword will the LORD plead with all flesh: and the slain of the LORD shall be many.

¹⁷ They that sanctify themselves, and purify themselves in the gardens behind one tree in the midst, eating swine’s flesh, and the abomination, and the mouse, shall be consumed together, saith the LORD.

For I know their works and their thoughts: it shall come, that I will gather all nations and tongues; and they shall come, and see my glory.

¹⁹ And I will set a sign among them, and I will send those that escape of them unto the nations, to Tarshish, Pul, and Lud, that draw the bow, to Tubal, and Javan, to the isles afar off, that have not heard my fame, neither have seen my glory; and they shall declare my glory among the Gentiles.

²⁰ And they shall bring all your brethren for an offering unto the LORD out of all nations upon horses, and in chariots, and in litters, and upon mules, and upon swift beasts, to my holy mountain Jerusalem, saith the LORD, as the children of Israel bring an offering in a clean vessel into the house of the LORD.

This was said to Israel at a particular time, so it is wise to read it together with the surrounding text. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB: “And I, knowing their deeds and thoughts, am coming to gather all nations and tongues, and they will come and see My glory.
KJV: For I know their works and their thoughts: it shall come, that I will gather all nations and tongues; and they shall come, and see my glory.
WEB: “For I know their works and their thoughts. The time comes that I will gather all nations and languages, and they will come, and will see my glory.
ASV: For I [know] their works and their thoughts: [the time] cometh, that I will gather all nations and tongues; and they shall come, and shall see my glory.
DARBY: And I, their works and their thoughts [are before me]. [The time] cometh for the gathering of all nations and tongues; and they shall come, and see my glory.
BLB: “And I—their deeds and their thoughts—I am coming to gather all the nations and tongues, and they will come and see My glory.

ÅB: Og jeg, jeg gjør deres gjerninger og deres tanker til intet; den tid kommer da jeg samler alle folk og tungemål, og de skal komme og se min herlighet.
OTB: «For jeg kjenner deres gjerninger og deres tanker, og tiden kommer for å samle alle nasjoner og språk. Og de vil komme og se min herlighet.
B1930: Og jeg, jeg gjør deres gjerninger og deres tanker til intet; den tid kommer da jeg samler alle folk og tungemål, og de skal komme og se min herlighet.

Study notes (Tyndale)

Original text and word study

Cross references

Psalms 86:9
All nations whom thou hast made shall come and worship before thee, O Lord; and shall glorify thy name.
Read in context
Revelation 11:15
And the seventh angel sounded; and there were great voices in heaven, saying, The kingdoms of this world are become the kingdoms of our Lord, and of his Christ; and he shall reign for ever and ever.
Read in context
2 Corinthians 4:4–6
In whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them.
Read in context
Isaiah 2:2
And it shall come to pass in the last days, that the mountain of the LORD’s house shall be established in the top of the mountains, and shall be exalted above the hills; and all nations shall flow unto it.
Read in context
John 5:42
But I know you, that ye have not the love of God in you.
Read in context
1 Corinthians 3:20
And again, The Lord knoweth the thoughts of the wise, that they are vain.
Read in context
Hebrews 4:12
For the word of God is quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart.
Read in context
Romans 15:8–12
Now I say that Jesus Christ was a minister of the circumcision for the truth of God, to confirm the promises made unto the fathers:
Read in context