If Jesus Christ was baptized for our sins in his baptism, and removed the original, when we are baptized we are uniting with him and accepting what He did for us in the cross? So if Jesus' baptism in the Jordan was for our sins, then what did He do in the cross?
Our Lord Jesus Christ fulfilled Divine Justice by His death on the cross. Thus, salvation was accomplished, as He said before He died on the cross, "It is finished" (John 19:30)! Therefore, those who believe and accept Christ have the gate of salvation open unto them. Nonetheless, every sacrament unites us with Christ. Baptism washes away Original Sin, Confession washes away our daily sins, and the Holy Eucharist is for the remission of sins and for Christ to abide in us and us in Him. The baptism of Jesus was not for our sins but to be anointed as the Messiah (the High Priest, King of kings, and the Prophet).