Isaiah 59:21 in the King James Version
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.
Context
20 “A Redeemer will come to Zion, and to those who turn from disobedience in Jacob,” says the LORD.
21 “As for me, this is my covenant with them,” says the LORD. “My Spirit who is on you, and my words which I have put in your mouth shall not depart out of your mouth, nor out of the mouth of your offspring, nor out of the mouth of your offspring’s offspring,” says the LORD, “from now on and forever.”