Psalms 118:15

15.The voice of shouting and salvation is in the tabernacles of the just. He affirms that the kindness which God had conferred upon him was so extensive, that it would not do to render thanks to him privately. In the benefits which he had received, God’s power appeared both remarkable and memorable, and the fruit of it also was extended to the whole Church. Therefore, as David’s deliverance was wonderful and advantageous generally to all the godly, he promises that he would make a public thanksgiving; and invites them to join him in this holy exercise. By this circumstance, he chiefly aims at magnifying the grace of God, and also by its effects to demonstrate, that not merely his individual preservation, but that of the whole Church, in his person, was accomplished. Intercommunion among believers does, indeed, bind them alternately to render thanks to God for each other; in David’s case, there was the specific reason which I have mentioned, his wonderful preservation from many deaths, and his having assigned to him the sovereignty of God’s chosen people. It is worthy of notice, that he combines the voice of joy and gladness with the praise of God, by which he shows that believers ought to mingle with their mirth a sense of the grace of God. To do valiantly, is tantamount to a magnificent display of his power, so that there may be a bright manifestation of its effulgence. God ofttimes secretly, and when apparently feeble, grants deliverance to his faithful people, that they may be sensible that it comes from him; but this is not so well known to others. Here, however, David asserts that the operation of God was so plainly developed, no one could doubt whence his safety came. The other phrase, that the right hand of God was exalted, refers to the same subject, because, by working powerfully and unwontedly, God had exalted his hand.