Charles H. Spurgeon on Psalms 32:1

Sin is covered. Every man that must be happy, must have something to hide and cover his sins from God's eyes; and nothing in the world can do it, but Christ and his righteousness, typified in the ark of the covenant, whose cover was of gold, and called a propitiatory, that as it covered the tables that were within the ark, so God covers our sins against those tables. So the cloud covering the Israelites in the wilderness, signified God's covering us from the danger of our sins. Thomas Taylor's "David's Learning: or the Way to True Happiness." 1617.