Luke
Acts 9:17BSB·traditional attribution

So Ananias went to the house, and when he arrived, he placed his hands on Saul. “Brother Saul,” he said, “the Lord Jesus, who appeared to you on the road as you were coming here, has sent me so that you may see again and be filled with the Holy Spirit.”

John Calvin Reformed @genevareformer

17. Having laid his hands upon. We have said elsewhere that this was a solemn, and, as it were, an ordinary thing amongst the Jews, to lay their hands upon those whom they did commend to God. The apostles translated that custom taken from sacrifices to their use, either when they gave the visible graces of the Spirit or when they made any man minister of the Church.

Matthew Henry Presbyterian @wholebiblehenry

As for God, his work is perfect; if he begin, he will make an end: a good work was begun in Saul, when he was brought to Christ's feet, in that word, Lord, what wilt thou have me to do? And never did Christ leave any that were brought to that. Though Saul was sadly mortified when he lay three days blind, yet he was not abandoned.

Commenting on Acts 9:10-22

John Gill Reformed Baptist @doctorgill

And Ananias went his way,.... He arose from off his bed or seat, where he was, went out of his house, and on the way to the place where Saul was; he had nothing more to say, his objections were answered; there was no room to excuse himself, nor did he now desire it, but quietly yields, and cheerfully obeys: and entered into the house...