The Gospels constantly call us to repent. Why? Some feel it is as if God wants to rub our noses in our sin so that maybe we will not do it again, hardly.
The call to repent is how we ongoingly reaffirm our devotion to Jesus as Lord. Jesus is Lord and the source of my identity. I am not defined by the sins I have done or the sins that have been done against me, but by the work of Jesus Christ on the Cross.
Repentance re-orients our affections to Jesus, because it is only when our sin becomes bitter that Jesus becomes sweet.