The most likely author of 1 John is traditionally believed to be the apostle John, who was one of the original twelve disciples of Jesus Christ. He was also the author of the Gospel of John and the Book of Revelation.

From an evangelical Christian perspective, John is considered to be an authoritative and reliable source of Christian doctrine and teaching. His writings are highly respected and considered to be inspired by the Holy Spirit.

1 John 1:9 is a verse that emphasizes the importance of confession and repentance, stating, “If we confess our sins, he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.” This verse is often used to encourage believers to be honest about their sins, seek forgiveness, and turn away from their sinful ways. From an evangelical perspective, this verse highlights the centrality of God’s grace and forgiveness in the Christian life.