Charles H. Spurgeon on Psalms 108:4

For thy mercy is great above the heavens, and therefore there must be no limit of time, or place, or people, when that mercy is to be extolled. As the heavens over arch the whole earth, and from above mercy pours down upon men, so shalt thou be praised everywhere beneath the sky. Mercy is greater than the mountains, though they pierce the clouds; earth cannot hold it all, it is so vast, so boundless, so exceeding high that the heavens themselves are over topped thereby. And thy truth teacheth unto the clouds. As far as we can see we behold thy truth and faithfulness, and there is much beyond which lies shrouded in cloud, but we are sure that it is all mercy, though it be far above and out of our sight. Therefore shall the song be lifted high and the psalm shall peal forth without stint of far resounding music. Here is ample space for the loudest chorus, and a subject which deserves thunders of praise.