If in debt, one feels like a slave.  There is a feeling of burden. It is difficult for one to walk freely.  If the yoke of indebtedness is lifted of their shoulders, there is definitely increased bond between the debtor and creditor.  The same applies to sin.  When one is in sin, there is the guilt feeling.  However, when we accept Jesus, confess our sins, and we are forgiven, we feel free to intermingle with His elect, and the bond   between the forgiven sinner and our Lord Jesus increases.