Baptism is the basic Christian ritual marking the death of our earthly bodies and transforming into a spiritual person living with and for God. We are submerged into the water (buried) as a dead sinner and then rise up out of the water (resurrection) newly cleaned and sinless by the blood of Christ. Our old self is dead and our new self is blameless, but only by the Grace that God has shown us by sacrificing Christ, the Holy Lamb. Read these verses, below about baptism and the dying of self:
“He went into all the country around the Jordan, preaching a baptism of repentance for the forgiveness of sins.” Luke 3:3
Then he said to them all: “Whoever wants to be my disciple must deny themselves and take up their cross daily and follow me. For whoever wants to save their life will lose it, but whoever loses their life for me will save it.” Luke 9:23-24
“We were therefore buried with him through baptism into death in order that, just as Christ was raised from the dead through the glory of the Father, we too may live a new life.” Romans 6:4
So then, just as you received Christ Jesus as Lord, continue to live your lives in him, rooted and built up in him, strengthened in the faith as you were taught,and overflowing with thankfulness. See to it that no one takes you captive through hollow and deceptive philosophy,which depends on human tradition and the elemental spiritual forces of this world rather than on Christ. For in Christ all the fullness of the Deity lives in bodily form, and in Christ you have been brought to fullness. He is the head over every power and authority. In him you were also circumcised with a circumcision not performed by human hands. Your whole self ruled by the flesh was put off when you were circumcised by Christ, having been buried with him in baptism, in which you were also raised with him through your faith in the working of God, who raised him from the dead. When you were dead in your sins and in the uncircumcision of your flesh, God made you alive with Christ. He forgave us all our sins, having canceled the charge of our legal indebtedness, which stood against us and condemned us; he has taken it away, nailing it to the cross. And having disarmed the powers and authorities, he made a public spectacle of them, triumphing over them by the cross. Colossians 2:6-15
“For through the law I died to the law so that I might live for God. I have been crucified with Christ and I no longer live, but Christ lives in me. The life I now live in the body, I live by faith in the Son of God, who loved me and gave himself for me. I do not set aside the grace of God, for if righteousness could be gained through the law, Christ died for nothing!” Galatians 2:19-21
From just these few scriptures alone, we can gather the powerful message of the cross and washing of the blood of Christ. We are “born again” with the Holy Spirit living inside us. Our past is nailed to the cross and is dead. We have new life, reconciled to our God, the one and only God. We shall worship no other gods before Him.
These Christian truths are continued in “Basic Christian Truths“