1 Peter 3:19-21

3:19 In it he went and preached to the spirits in prison,

3:20 after they were disobedient long ago when God patiently waited in the days of Noah as an ark was being constructed. In the ark a few, that is eight souls, were delivered through water. 3:21 And this prefigured baptism, which now saves you – not the washing off of physical dirt but the pledge of a good conscience to God – through the resurrection of Jesus Christ,