Hebrews 8:12

For I will be merciful to their unrighteousness, and their sins and their iniquities will I remember no more.

For ... - The third of "the better promises" (Hebrews 8:6). Forgiveness of sins is the root of this new state of inward knowledge of the Lord. Sin being abolished, sinners obtain grace.

I will be merciful, [ hileoos (G2436)] - propitious; the Hebrew caalach (H5545) is always used to God only in relation to men.

And their iniquities. So A Delta f. Not in B 'Aleph ('), Vulgate, Syriac, Coptic (perhaps from Hebrews 10:17).

Remember no more - contrast the law (Hebrews 10:3).