17 Is it not now the time of the grain cutting? My cry will go up to the Lord and he will send thunder and rain: so that you may see and be conscious of your great sin which you have done in the eyes of the Lord in desiring a king for yourselves. 18 So Samuel made prayer to the Lord; and the Lord sent thunder and rain that day: and all the people were in fear of the Lord and of Samuel. 19 And all the people said to Samuel, Make prayer for us to the Lord your God so that death may not overtake us: for in addition to all our sins we have done this evil, in desiring a king. 20 Then Samuel said to the people, Have no fear: truly you have done evil, but do not be turned away from the Lord; be his servants with all your heart; 21 And do not go from the right way turning to those false gods in which there is no profit and no salvation, for they are false. 22 For the Lord will not give his people up, because of the honour of his name; for it was the Lord's pleasure to make of you a people for himself. 23 And as for me, never will I go against the orders of the Lord by giving up my prayers for you: but I will go on teaching you the good and right way. 24 Only go in the fear of the Lord, and be his true servants with all your heart, keeping in mind what great things he has done for you. 25 But if you still do evil, destruction will overtake you and your king.
Matthew Henry's Commentary on 1 Samuel 12:17-25
Commentary on 1 Samuel 12:16-25
(Read 1 Samuel 12:16-25)
At Samuel's word, God sent thunder and rain, at a season of the year when, in that country, the like was not seen. This was to convince them they had done wickedly in asking a king; not only by its coming at an unusual time, in wheat harvest, and on a clear day, but by the prophet's giving notice of it before. He showed their folly in desiring a king to save them, rather than God, or Samuel; promising themselves more from an arm of flesh, than from the arm of God, or from the power of prayer. Could their prince command such forces as the prophet could do by his prayers? It startled them very much. Some will not be brought to see their sins by any gentler methods than storms and thunders. They entreat Samuel to pray for them. Now they see their need of him whom shortly before they slighted. Thus many who will not have Christ to reign over them, would yet be glad to have him intercede for them, to turn away the wrath of God. Samuel aims to confirm the people in their religion. Whatever we make a god of, we shall find it deceive us. Creatures in their own places are good; but when put in God's place, they are vain things. We sin if we restrain prayer, and in particular if we cease praying for the church. They only asked him to pray for them; but he promises to do more, to teach them. He urges that they were bound in gratitude to serve God, considering what great things he had done for them; and that they were bound in interest to serve him, considering what he would do against them, if they should still do wickedly. Thus, as a faithful watchman, he gave them warning, and so delivered his own soul. If we consider what great things the Lord hath done for us, especially in the great work of redemption, we can neither want motive, encouragement, nor assistance in serving him.