Romans 5:16
And the gift [of salvation] is not like [the effect of] one man's sin [i.e., Adam's], for [God's] judgment of condemnation came [upon mankind] through one man [i.e., Adam], but the free gift [of salvation] came as the result of [the] many sins [of mankind] and [it] made people right with God.
Romans 5:21
This was so that just as sin ruled [over mankind], causing [physical] death, even so God's unearned favor would rule [over mankind], providing [them with] righteousness, and leading to never ending life through Jesus Christ our Lord.
1 John 2:1-3
My little children [i.e., dear ones], I am writing this to you so that you will not sin anymore. But if anyone does sin, we have Someone to go to the Father on our behalf; it is Jesus Christ, the [only] righteous One.