17 You know that it does not rain at this time of the year during the wheat harvest. I will ask the Lord to send thunder and rain today. Then you will realize how wicked you have been in asking the Lord for a king!" 18 So Samuel called to the Lord, and the Lord sent thunder and rain that day. And all the people were terrified of the Lord and of Samuel. 19 "Pray to the Lord your God for us, or we will die!" they all said to Samuel. "For now we have added to our sins by asking for a king." 20 "Don't be afraid," Samuel reassured them. "You have certainly done wrong, but make sure now that you worship the Lord with all your heart, and don't turn your back on him. 21 Don't go back to worshiping worthless idols that cannot help or rescue you-they are totally useless! 22 The Lord will not abandon his people, because that would dishonor his great name. For it has pleased the Lord to make you his very own people. 23 "As for me, I will certainly not sin against the Lord by ending my prayers for you. And I will continue to teach you what is good and right. 24 But be sure to fear the Lord and faithfully serve him. Think of all the wonderful things he has done for you. 25 But if you continue to sin, you and your king will be swept away."
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.