And they of the circumcision who believed were astonished, as many as came with Peter, because that on the Gentiles also was poured out the gift of the Holy Spirit.
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Peter is strengthened by the tesimony of the Holy Spirit so that he should not hesitiate to give baptism to the gentiles. And this was done so that his companions, as witnesses, might confound the Jews.
He does not say that Peter was astonished, but, They of the circumcision: since he knew what was in preparation. And yet they ought to have marvelled at this, how they themselves had believed. When they heard that they had believed, they were not astonished, but when God gave them the Spirit. Then answered Peter and said, etc.