Whether you confess to a priest, a minister, a trusted friend, and/or privately to God, repentance and confession are powerful things. The Bible references confession, including “When you realize your guilt in any of these, you shall confess the sin that you have committed.” (Leviticus 5:5), “Therefore confess your sins to one another, and pray for one another, so that you may be healed.” (James 5:16a), and ‘”[Jesus] … breathed on [his disciples] and said to them, “Receive the Holy Spirit. If you forgive the sins of any, they are forgiven them; if you retain the sins of any, they are retained.”’ (John 20:22-23). Stating our sins explicitly brings them out in the open, into the light. I believe Jesus knew that unconfessed sin was like an untreated wound; if not exposed and cleansed, it would fester.
Once, when I confessed resentment at being hurt or misunderstood, the priest advised, “Think of the hurt like a knife in your heart. You pull out the knife. Now you have a choice. You can keep dwelling on the hurt and/or stab the other person, or you can say to Jesus, “Jesus, I give you this knife and my hurt. You take it. I ask You to handle this because I cannot.”
I don’t always get such helpful advice when I confess, nor do I always have a dramatic experience as some do (for example, a radical experience of cleansing), but I trust that Jesus IS cleansing me and granting me the grace to grow in love for Him and for others.
[Perhaps I should add that wounds from others, or from our own sins, should not be ignored, but neither should we wallow in self-pity. Sometimes the wounds are so deep that we might need counseling from others, or serious therapy. But learning to let Jesus heal our wounds is a big step.]
Don’t be afraid to confess! Unlike with people at times, God will take you back, and all you confess and repent of will be forgotten in the ocean of His mercy.