Isaiah 59:21

Amplified Bible

²¹ “As for Me, this is My covenant with them,” says the Lord: “My Spirit which is upon you [writing the law of God on the heart], and My words which I have put in your mouth shall not depart from your mouth, nor from the mouths of your [true, spiritual] ^[a]children, nor from the mouth of your children’s children,” says the Lord, “from now and forever.”^(A)