Forgiveness of sins embodies the fundamental truth held by the Christian believer in relationship to his sins is the fact that his salvation comprehends the forgiveness of all of his trespasses past, present, and future so far as condemnation is concerned (Romans 3:1; Colossians 2:13; John 3:18; John 5:24).
This is believed because Christ vicariously borne all sin and since the believer’s standing in Christ is complete, he is perfected forever in Christ. When the believer sins, he is subject to chastisement from the Father, but never to condemnation with the world (1 Corinthians 11:31, 32).
By confession the Christian is forgiven and restored to fellowship (1 John 1:9). It needs to be remembered that such forgiveness and restoration would not be possible if it was not for Christ’s death, resurrection, and heavenly intercession; it is held that the least sin would result in the person’s banishment from God’s presence and eternal damnation. A.G.H.
Unger, Merrill F., Unger’s Bible Dictionary, Chicago, Moody Press, 1966, p. 377