Charles H. Spurgeon on Psalms 90:12

Observe here, after that Moses had given us a description of the wrath of God, presently his thoughts are taken up with the meditation of death. The wrath of God thought on makes us think of death...Let us often think of the wrath of God, and let the thought of it so far work upon us, as to keep us in a constant awe and fear of God; and let this fear drive us to God by prayer, that fearing as we ought, we may pray as we are commanded, and praying, we may prevent the wrath of God. If our present sorrows do not move us, God will send greater; and when our sorrows are grown too great for us, we shall have little heart or comfort to pray. Let our fears then quicken our prayers; and let our prayers be such as are able to overcome our fears; so both ways shall we be happy, in that our fears have taught us to pray, and our prayers have made us to fear no more. —Christopher Shute, in "Ars pie moriendi: or, The true Accomptant. A Sermon", etc., 1658.