Psalms 25:7

Remember not the sins of my youth - Those which I have committed through inconsiderateness, and heat of passion.

According to thy mercy - As it is worthy of thy mercy to act according to the measure, the greatness, and general practice of thy mercy; so give me an abundant pardon, a plentiful salvation.

For thy goodness' sake - Goodness is the nature of God; mercy flows from that goodness.