[Can professing Christ wash away sins like those committed by Hitler?]

Response to comment [from other]: Christ's innocent (Matt. 27:4), precious (1 Pet. 1:19) blood is sufficient (Heb. 9:13, 14) to cleanses us from all sins (1 John 1:7).

Believe this (Rom. 5:9) and be reconciled (Eph. 2:13–16).

"...[A]ncient [C]atholic made bible..."

See:

Why Isn't the Apocrypha in the Bible?

Did Constantine Decide What Books Belong in the Bible?

What Occurred at the Council of Nicea?

Did the Roman Catholic Church Give us the Bible?

What is the origin of the Roman Catholic Church?

[Can professing Christ wash away sins like those committed by Hitler?]