The nations shall see and be confounded at all their might: they shall lay their hand upon their mouth, their ears shall be deaf.  They shall lick the dust like a serpent, they shall move out of their holes like worms of the earth: they shall be afraid of the LORD our God, and shall fear because of Thee.
Who is a God like unto Thee, that pardoneth iniquity, and passeth by the transgression of the remnant of His heritage? He retaineth not His anger for ever, because He delighteth in mercy.  He will turn again, He will have compassion upon us; He will subdue our iniquities; and Thou wilt cast all their sins into the depths of the sea.  Thou wilt perform the truth to Jacob, and the mercy to Abraham, which Thou hast sworn unto our fathers from the days of old.
Micah 7:16-20

Micah began his prophecy warning Jacob [Israel] of their transgression; and also warning the nations coming against them.

He ends the prophecy by giving us the prophecy of the confounded nations fearing the LORD, because of His mighty works He has done.

He proceeds to tell Israel that the LORD will not retain anger; hold on to anger, forever, because He delights in mercy. He has compassion on us, and subdues our iniquities, by casting them (our sins) into the depths of the sea. He sent His Son Jesus Christ to die for us because He took our sin and the wrath of God for sin dying for us, He was buried for three days, having carried our sins away never to be seen again. (Read about the scapegoat in Leviticus). When the three days had passed Jesus rose from the grave victorious over sin, over death, and over Hell.

The LORD God will perform every promise He has promised to Jacob, and to Abraham.

God’s answer for the salvation of our race is only found in Jesus Christ. He has subdued our iniquities – our sins – and cast them into the depths of the sea. That is good news for all to hear. Will you believe and receive that good news, that Christ Jesus has died for  our sins, was buried, and He rose again three days later; and that same Jesus is returning someday.