Micah 7:18-19 Who is a God like You, who pardons iniquity and passes over the transgression of the remnant of His heritage? He does not retain His anger forever, Because He delights in mercy.
[in Hebrew mercy is the word "ch-sed" — which has a much deeper meaning. Click here to read an explanation of the richness of this word.] He will turn again, He will have compassion on us, and He will subdue our iniquities. Yes, You will cast all our sins into the depths of the sea.
One of the more beautiful ceremonies of the Jewish faith is called "Tashlich". Tashlich means to cast away. Every year between Rosh haShana and Yom Kippur, Jewish people around the world journey to a nearby river or stream and cast in bread crumbs as they confess their sins. As the bread crumbs are swept downstream soon to be out of sight, so they believe God will sweep away their sins.