Romans 11:26

Then Moses sang at the Red Sea, it was his joy to know that all Israel were safe. Not a drop of spray fell from that solid wall until the last of God’s Israel had safely planted his foot on the other side the flood.

That done, immediately the floods dissolved into their proper place again, but not till then. Part of that song was, “Thou in thy mercy hast led forth the people which thou hast redeemed.”

God will provide himself a lamb for a burnt offering.

Behold, the Lord's hand is not shortened, that it cannot save; neither his ear heavy, that it cannot hear.—There shall come out of Sion the Deliverer, and shall turn away ungodliness from Jacob.