**Luke 23:43 says what I’m talking about.**
You can’t be the ‘thief’. Since Luke 23:43, the Christ said “it is finished”, bowed his head, and died. Then he arose, and instructed his apostles to go and teach....to preach repentance and remission of sins......in his name. He told THEM to remit sins.
Acts 2:38 is where the Lord’s post resurrection will, for ‘whosoever’, is plainly laid out.
Baptism is a work. It’s something we do to honor Christ but it will not save anybody by itself nor is it necessary for a confessed believer in Christ to do.
Romans 10:9-10 spells out crystal clear who is saved. Baptism comes AFTER this fact.