Luke
Acts 10:17BSB·traditional attribution

While Peter was puzzling over the meaning of the vision, the men sent by Cornelius found Simon’s house and approached the gate.

John Calvin Reformed @genevareformer

17. Peter was taught not only by the vision, but also by the Word of God; and yet in seeing he saw not, until the Spirit is unto him an interpreter; a most excellent mirror of our slackness. Although we be yet far unlike to Peter; for we are so far from understanding by and by what God will, or to what end he speaketh...

Matthew Henry Presbyterian @wholebiblehenry

Cornelius had received positive orders from heaven to send for Peter, whom otherwise he had not heard of, or at least not heeded; but here is another difficulty that lies in the way of bringing them together - the question is whether Peter will come to Cornelius when he is sent for; not as if he thought it below him to come at a beck...

Commenting on Acts 10:9-18

John Gill Reformed Baptist @doctorgill

Now while Peter doubted in himself,.... For notwithstanding what he had heard and seen, he had not at once a full knowledge of this matter. Beza's most ancient copy reads, "as he was in himself, he doubted"; that is, when he came to himself, for he was before, as it were, out of himself, and was in a trance, or ecstasy; and now being come...