1 Peter 3:20-21

who before were disobedient, when God waited patiently in the days of Noah, while the ship was being built. In it, few, that is, eight souls, were saved through water.

This is a symbol of immersion, 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 Yeshua the Messiah,