The Word of God is truth, and when the truth gets through you, and convicts you, you need to confess your sins. This is a benefit that the Holy Spirit carries out to keep us right with God. Just as we need to take a bath/shower regularly to get rid of unappealing odors, grease, and oils, we need to have our sins washed away every day. Confession is going to God, in humility, for help, and laying out everything in front of Him, so that He can administer what needs to be taken away, what needs to be renewed, and what needs to be brand new. If we confess, God is faithful and just to forgive us from all our sin, and will cleanse us from all unrighteousness. Confession to the Lord directly should be a daily regiment in your relationship with Him.