also the admonition in Ps 55:23 to cast our burdens on the Lord. That is, our cares and burdens are to be thrown away, abandoned into his care, so that we have nothing more to do with them. God’s total forgiveness of sin is graphically portrayed in Mic 7:19, in which God casts the sins of his people into the depths of the sea. The obvious inference is that they are gone forever, never again to be brought to light. Similar to this is Isa 38:17 in which God has cast Hezekiah’s sins behind his back