How do we know that salvation comes from looking to Christ alone?

The doctrine of salvation emphasizes that it is through faith in Jesus Christ and His redemptive work on the cross that we are saved. Ephesians 2:8-9 states, 'For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: not of works, lest any man should boast.' This highlights that any attempt to rely on our own deeds or righteousness is flawed, as Romans 3:23 teaches that all have sinned and fall short of the glory of God. Therefore, a single eye to Christ acknowledges His finished work as the only means of atonement for sin.