1What should we say then? Should we continue in sin so that grace may multiply? 2 Absolutely not! How can we who died to sin still live in it? 3 Or are you unaware that all of us who were baptized into Christ Jesus were baptized into His death? 4 Therefore we were buried with Him by baptism into death, in order that, just as Christ was raised from the dead by the glory of the Father, so we too may walk in a new way of life. 5 For if we have been joined with Him in the likeness of His death, we will certainly also be in the likeness of His resurrection. 6 For we know that our old self was crucified with Him in order that sin’s dominion over the body may be abolished, so that we may no longer be enslaved to sin, 7 since a person who has died is freed[e] from sin’s claims.[f] 8 Now if we died with Christ, we believe that we will also live with Him, 9 because we know that Christ, having been raised from the dead, will not die again. Death no longer rules over Him. 10 For in light of the fact that He died, He died to sin once for all; but in light of the fact that He lives, He lives to God. @Romans6.1-10 (HCSB)
After Jesus’ death, in order to access salvation one must by faith be immersed (cf., passage above, Acts 2:38; 1 Peter 3:21, etc). We must share in Jesus’ death and resurrection. Immersion (aka baptism) is the moment we share in Jesus’ death and resurrection. The Bible is very clear about this.
But think about this, there were two criminals, specifically thieves that were crucified with Jesus, one on each side of him. One of those thief’s had a change of heart and with a heart of sorrow and repentance and believed in Jesus. He asked Jesus to remember him in his glory and Jesus promised him he would be there with him. The other thief died scorning Jesus, ridiculing him like the Jewish leaders taunting and belittling him on the cross. He died without repentance and was not given a promise of hope by Jesus.
Both of the thieves died, when Jesus died. I don’t mean they died at the very same instant, but they died on those crosses together. The one in the middle, the Savior for those who have faith in him, one died without faith, and the other died believing. The thieves literally shared in the death of Christ, but only one was given the promise of eternal life, @Luke23.39-43.
In other words, the thief that expressed his belief will awaken to eternal life.
When a person believes and repents, they are baptized. It is in that moment that we experience what the thief that Jesus promised Paradise too, salvation. We experience death and resurrection in the activity of baptism. Dead in sin, we are buried under the water and we rise out of the water alive in Christ. It is there that God applies salvation to our lives.
It is in death that Jesus forgave the repentant thief and it is in death that God forgives the repentant sinner.