1 Peter 3:20-21

Primary
20 Which sometime were disobedient, when once the longsuffering of God waited in the days of Noah, while the ark was a preparing, wherein few, that is, eight souls were saved by water. 21 The like figure whereunto even baptism doth also now save us (not the putting away of the filth of the flesh, but the answer of a good conscience toward God,) by the resurrection of Jesus Christ:

What this passage establishes

Peter says baptism now saves as an appeal of a good conscience through Jesus Christ’s resurrection, not as physical washing.

Why it matters in the argument

The apostolic record consistently treats repentance, water baptism, and Spirit reception as the commanded response to the gospel rather than optional religious accessories.

Apostolic connection

The singular name of Matthew 28:19 is enacted throughout Acts by baptism in the name of Jesus Christ, the revealed saving name.

Common misunderstanding

Baptism does not earn grace. It is a faith-response in which the believer obeys Christ, identifies with His death and burial, and calls on His name.

How to use it in conversation

Read the command, then show the apostles carrying it out. Let Acts interpret how Matthew 28:19 was understood.

Scripture connections

See which passages advance, clarify, or answer the argument