We crucify the old man (our old sinful selves) by repentance – being sorry for our sins and nailing them to the cross, we bury that old self in water baptism in Jesus name, then we receive God's gift to us of HIS Holy Spirit so that we can have a new self. We can become a truly good and holy person like Jesus as we walk in a new life with Him.

"Knowing this, that our old man is crucified with him, that the body of sin might be destroyed, that henceforth we should not serve sin. For he that is dead is freed from sin." - Romans 6:6-7 KJV {NLT: We know that our old sinful selves were crucified with Christ so that sin might lose its power in our lives. We are no longer slaves to sin. For when we died with Christ we were set free from the power of sin.}

"That ye put off concerning the former conversation the old man, which is corrupt according to the deceitful lusts; and be renewed in the spirit of your mind; and that ye put on the new man, which after God is created in righteousness and true holiness." - Ephesians 4:22-24 KJV {NLT: throw off your old sinful nature and your former way of life, which is corrupted by lust and deception. Instead, let the Spirit renew your thoughts and attitudes. Put on your new nature, created to be like God—truly righteous and holy.}

"Lie not one to another, seeing that ye have put off the old man with his deeds; and have put on the new man, which is renewed in knowledge after the image of him that created him:" - Colossians 3:9-10 KJV {NLT: Don't lie to each other, for you have stripped off your old sinful nature and all its wicked deeds. Put on your new nature, and be renewed as you learn to know your Creator and become like him.}

"God forbid. How shall we, that are dead to sin, live any longer therein? Know ye not, that so many of us as were baptized into Jesus Christ were baptized into his death? Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life." - Romans 6:2-4 KJV {NLT: Of course not! Since we have died to sin, how can we continue to live in it? Or have you forgotten that when we were joined with Christ Jesus in baptism, we joined him in his death? For we died and were buried with Christ by baptism. And just as Christ was raised from the dead by the glorious power of the Father, now we also may live new lives.}