What Doctrine?
  Paul reminded the Roman brethren how they had obeyed from the heart "that form of doctrine which was delivered you; being then made free from sin, ye became servants of righteousness" (Romans 6:17-18). The doctrine that saves is the death, burial and resurrection of Christ (1 Cor. 15:1-4). Paul shows how being baptized is to obey the form of that doctrine. We die to sin, are buried in water, and raised to walk in newness of life. It is not difficult to see how baptism is the form of doctrine Paul mentions.

  Some contend sprinkling is baptism. Tell me!  Of what doctrine that saves is sprinkling a form? It is certainly not in the image of the doctrine that saves. Men have departed from God's way to practice sprinkling or pouring as baptism. Baptism is immersion and being raised. That pictures to us the death, burial and resurrection of Christ without which there would be no salvation.