Isaiah 59:20-21 Expanded Bible (EXB)
20 “Then a Savior will come to ·Jerusalem [L Zion; C the location of the Temple]
21 The Lord says, “This is my ·agreement [promise; covenant] with these people: My Spirit and my words that I ·give you [have put in your mouth] will ·never leave you [not depart from your mouth] or [L the mouth of] your ·children [descendants; seed] or [L the mouth of] your ·grandchildren [descendants’ descendants; L seed’s seed], now and forever [Jer. 31:31; Heb. 8:10; 10:16].”
Isaiah 59:20-21 King James Version (KJV)
20 And the Redeemer shall come to Zion, and unto them that turn from transgression in Jacob, saith the Lord.
21 As for me, this is my covenant with them, saith the Lord; My spirit that is upon thee, and my words which I have put in thy mouth, shall not depart out of thy mouth, nor out of the mouth of thy seed, nor out of the mouth of thy seed's seed, saith the Lord, from henceforth and for ever.