2. By a divine power going along with that command, v. 2. God bade him stand up; but, because he had not strength of his own to recover his feet nor courage to face the vision, the Spirit entered into him and set him upon his feet. Note, God is graciously pleased to work that in us which he requires of us and raises those whom he bids rise. We must stir up ourselves, and then God will put strength into us; we must work out our salvation, and then God will work in us. He observed that the Spirit entered into him when Christ spoke to him; for Christ conveys his Spirit by his word as the ordinary means and makes the word effectual by the Spirit. The Spirit set the prophet upon his feet, to raise him up from his dejections, for he is the Comforter. Thus, in a similar case, Daniel was strengthened by a divine touch (Dan. x. 18) and John was raised by the right hand of Christ laid upon him, Rev. i. 17. The Spirit set him upon his feet, made him willing and forward to do as he was bidden, and then he heard him that spoke to him. He heard the voice before (ch. i. 28), but now he heard it more distinctly and clearly, heard it and submitted to it. The Spirit sets us upon our feet by inclining our will to our duty, and thereby disposes the understanding to receive the knowledge of it.