“While Peter yet spake these words, the Holy Ghost fell on all them which heard the word. And they of the circumcision which believed were astonished, as many as came with Peter, because that on the Gentiles also was poured out the gift of the Holy Ghost. For they heard them speak with tongues, and magnify God. Then answered Peter, Can any man forbid water, that these should not be baptized, which have received the Holy Ghost as well as we? And he commanded them to be baptized in the name of the Lord. Then prayed they him to tarry certain days.” (Acts 10:44-48)
In Acts 10:44-48 Cornelius and those present with him, when Peter preached the Gospel to them, believed and received the Baptism of the Holy Spirit; following this they were baptized in water. If water baptism was necessary for salvation why did the Holy Spirit indwell them as believers BEFORE they were baptized in water? The baptism of the Holy Spirit refers to the indwelling of the Holy Spirit in a believer’s life and receiving the new nature from God. Peter asks the question, “Can any man forbid water, that these should not be baptized, which have received the Holy Ghost as well as we?” (Acts 10:47) Peter is effectively saying that Cornelius was saved and had received the Holy Spirit as Peter had and those who believed with him, at Pentecost in Acts 2. Peter further said that Cornelius, who was now saved along with those there with him, should now be baptized in water. If salvation is received at baptism, as some believe, this passage would then be essentially and incorrectly interpreted as saying that the Holy Spirit will indwell the unsaved.