Isaiah 66:20-21

20Then they shall 1bring all your brethren from all the nations as a grain offering to the Lord, on horses, in chariots, in litters, on mules and on camels, to My 2holy mountain Jerusalem,” says the Lord, “just as the sons of Israel bring their grain offering in a 3clean vessel to the house of the Lord.

21I will also take some of them for 4priests and for Levites,” says the Lord.