Why does Paul, writer of two-thirds of the New Testament, not mention confession of sins?

Why does Paul, writer of two-thirds of the New Testament, not mention confession of sins?

According to doctrine

Paul, the Apostle to the Gentiles, Paul, never commands that members of the Body of Christ must confess sins. Paul received a deeper truth from the ascended Christ for grace believers, and unlike the Old Covenant and the Kingdom program, this does not contain instructions regarding the confessing of our sins. Paul only mentions the word "confessing" (Gk, homologeo, "acknowledge") in the context of "acknowledging Jesus Christ is Lord", as we see in Romans 10:10.

Since we are not under the law, we do not practice confession of sins because our salvation and fellowship with God are not dependent of OUR performance. We are forgiven, apart from anything we have done. In Colossians 2:13, our Apostle Paul tells us that we are "forgiven of all trespasses [in Christ]". In Ephesians 4:32 it is written, "God for Christ’s sake hath forgiven you", and Colossians 3:13, "even as Christ forgave you, so also do ye". We are forgiven (past tense), not because we confess our sins, but because of Christ’s finished cross work on Calvary. In Christ, we have unbroken fellowship with God forever and ever. How many times can we be forgiven of "all unrighteousness?" Only once. In Christ, now and forever, we are forgiven of all sins ----past, present, and future!

According to relationship

It is good to sense remorse for sin and come to God with a contrite heart, but there is no need (or law) dictating the importance and ‘must’ regarding daily confessing our sins. Please don’t misunderstand me. I come to God with remorse and sorrow for falling in moments of weakness, but it will not affect my relationship with God if I do not confess my sins every day. Why? Because God already sees you as absolutely righteous because of Christ. His righteousness has already been applied to you. Your flesh remains corrupt and prone to sin, but your spirit is perfect in His sight. If one places oneself under a law (or under a rule) to confess sins, as with any other rule to try to work out your own righteousness, all it will do is bring condemnation. We must be careful not to have laws dictate our relationship with God. We should aim to come out from under law as children and to grow up in the truth of the Word and walk in the liberty of the spirit as sons of God. To be bound by the dictates of laws which can never be perfectly followed anyways is not the way God indented for us to walk.

I praise God that in Christ, and through His blood, I am justified and pure in the sight of God and God does not account sins against me today, 2Cor.5:19. In moments of weakness when I sin, I sense remorse and sorrow for falling, but that sin is not held against me because it is nailed to the cross of Christ and it is His perfect life that has been imputed to me. Thus, confession of sin is a fruitless exercise in the context of one’s salvation, since we believe that our sins are obliterated by the blood of Christ, but confession and remorse have its purpose in our relations with God and others to keep us humble and dependent upon His grace. Let us continue to grow in God Word and focus on obedience to its influences in our lives and as we start to walk by the spirit of His Word, we will become less prone to the need of confession by what Paul writes here,

Rom 8:3 For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh: (4) That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit. (5) For they that are after the flesh do mind the things of the flesh; but they that are after the Spirit the things of the Spirit. … (12) Therefore, brethren, we are debtors, not to the flesh, to live after the flesh. (13) For if ye live after the flesh, ye shall die: but if ye through the Spirit do mortify the deeds of the body, ye shall live.

God bless.