Dr. James P. Boyce wrote, "Christians are not presented in the Bible as completely pure and holy, but on the contrary, the very best of them acknowledge the existence of sinful tendencies and pronounce any idea of freedom from the presence of sin to be a delusion."
"If we say that we have no sin, we deceive ourselves and the truth is not in us" (1 John 1:8). This verse was written to those who are Christians. There is a battle that goes on within every Christian (Galatians 5:17). It's the conflict of the Spirit and flesh. Christians are indwelt by the Holy Spirit (Romans 8:9; Ephesians 1:13-14). Yet, Christians still live in a corruptible body of sin, the flesh.
There is a conflict between the Spirit and flesh within Christians in this life. Dr. Boyce contrasted justification and sanctification."It is not a sanctification to be completed in this life. It is not like justification, a single act, but it is a continuous process. The work goes on throughout the lifetime of the believer, nor is it completed before death."
When Christians sin, we confess our sins to God for cleansing. First John 1:9-10 makes it clear. "If we confess our sins, he is faithful and just to forgive us our sins and cleanse us from all unrighteousness. If we say that we have not sinned, we make him a liar, and his word is not in us."
