Charles Spurgeon Commentary Acts 2:37-38

"Now when they heard [this,] they were pricked in their heart, and said unto Peter and the rest of the apostles, Brethren, what shall we do? And Peter [said] unto them, Repent ye, and be baptized every one of you in the name of Jesus Christ unto the remission of your sins; and ye shall receive the gift of the Holy Spirit." — Acts 2:37-38 (ASV)

And said to Peter and to the rest of the apostles, Men and brethren, what shall we do? Then Peter said to them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sin, and you shall receive the gift of the Holy Ghost.

Nobody but a Baptist minister could have preached that sermon; at least, we shall have to wait a long while before we hear any other saying to a whole congregation, Repent, and be baptized every one of you. This is indeed the full proclamation of the gospel, and we have no more right to leave out the baptism than we have to leave out the repentance. Repent, and be baptized every one of you.

Peter was not like those hyper-Calvinists who are afraid to give an exhortation to a sinner because he is spiritually dead, but he spoke out boldly to those who had asked, What shall we do? and said to them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins.