“Fess up” is a modern phrasal verb that means “to admit that you have done something wrong.” In biblical terminology, it means “to confess your sin.” Even though we have been forgiven and saved by trusting on Jesus Christ, God understands that we still sin. That’s why He reminds us in 1 John 1:9:
“If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.”
The precious, cleansing blood of Messiah Jesus our Savior is available to us, at any time, to cleanse us from all sin. All that God asks of us is to “confess” or “fess up” when we know we have sinned, once again, and missed the mark of God’s holy commandments.
Confession on our part helps us to recognize that we still struggle against the old sinful nature and how often we fall short of God’s standard of perfection. On a daily basis, confession also keeps us humble and dependent on God’s grace and mercy. Without regular confession, we have a tendency to become prideful and self-righteous. We may even become blind to our faults and self-deceived – like the Pharisee in Jesus’ parable (Luke 18:9-14). This pompous religionist looked down on other people and declared himself more righteous than the Publican because “he wasn’t an immoral person, fasted twice a week, and gave tithes of all he possessed.” Yet Jesus said he was still lost!
Only the Publican went home “justified” because he humbled and pleaded with God to forgive him – a sinner.
– Pastor Luis Yosefus