Micah 7 “Who is a God like you, who pardons sin and forgives the transgression of the remnant of his inheritance?You do not stay angry forever but delight to show mercy.You will again have compassion on us; you will tread our sins underfoot and hurl all our iniquities into the depths of the sea.You will be faithful to Jacob, and show love to Abraham,as you pledged on oath to our ancestors in days long ago.”

The promise to Abraham is the Lord Jesus Christ in whom our sins are forgiven by faith.

Our sins have been thrown away into the sea, buried with Christ and He rose from the dead, just like Jonah came out of the sea.

Matthew 12:40 “For as Jonah was three days and three nights in the belly of a huge fish, so the Son of Man will be three days and three nights in the heart of the earth.”

Galatians 3 “16 The promises were spoken to Abraham and to his seed. Scripture does not say “and to seeds,” meaning many people, but “and to your seed,” meaning one person, who is Christ. …29 If you belong to Christ, then you are Abraham’s seed, and heirs according to the promise.”