This is a symbol of baptism, which now saves you-- not the putting away of the filth of the flesh, but the answer of a good conscience toward God, through the resurrection of Jesus Christ,
2.    The water that destroyed the disobedient of Noah’s day was identical to the water that saved Noah; the water that separated the saved from the lost was the same. It is the water of baptism that in like fashion destroys and saves today. Baptism is the line of demarcation between the lost and the saved (Acts 2:38). In baptism the old man of sin is buried; and, from the watery grave, he rises to "walk in newness of life" (Romans 6:4). Those who refuse to be baptized rebel against the authority of Christ (Mark 16:15-16).