About the Cover: The waters of judgement covered the whole world. However, the Lord, and His mercy, saved those on the ark. The Lord set the rainbow in the sky for the world and Him to see as a sign of His covenant of mercy. The Lord continues to give us the signs of His mercy in His Word and Sacraments. The waters of Holy Baptism are life-given and a sign of His promise to us that we are saved by the washing of regeneration that unites us to Christ.