Baptism won't save you

Or is anyone hearing this who is relying upon his or her baptism? I do not care whether you were baptized as an infant or whether you were grown-ip - it make not the slightest difference, if you are relying upon it. 

If you think that the act of baptism is the thing that saves you and puts you right, whatever you may be doing with your life, you are in the identical position of the Jews. As they relied on circumcision you are relying upon baptism, whether it is sprinkling or immersion, or anything else you make like - mode, again, it does not matter. 

Anyone who relies upon it, and upon it alone, is in the position of the Jew who was relying upon circumcision. [see Romans 2:25-29]

 (p156  Romans: 1 to 3: 20 - The Righteous Judgement of God An Exposition of Chapters 2 - D.M Lloyd-Jones )