How do we know confession is necessary for salvation?

Confession is necessary for salvation because it is an acknowledgment of our sinful nature and our need for God's mercy. The Bible consistently states that without confession, there is no reconciliation with God (1 John 1:9). When we confess our sins, we demonstrate humility and the recognition that we cannot save ourselves; only God's grace can cleanse us. Furthermore, Psalm 32:5 illustrates that confession leads to forgiveness, reinforcing the doctrine that true salvation begins with a heartfelt confession to God about our iniquities.