Psalms 90 is a song of pain that came from a deep sense of loss. It was written by Moses at a time when he was in despair. Many Bible commentators and theologians believe that much of the psalm was a reflection on painful experiences from the loss of his beloved siblings (Aaron and Miriam) and him missing to enter the Promised Land. Moreover, this great leader of Israel saw a whole generation waste away in the wilderness for forty terribly long years.

Moses had all the reasons to despair. He could have abandoned God and His people and perhaps returned to Midian. He could have soaked himself in self-pity and backslidden, claiming (like some people do) that God had disappointed him after his years of diligent service. But he acted differently by humbly submitting to God's supreme will and chastisement both for His people and himself. Instead of accusing God of being too harsh, he pleaded that He should teach him wisdom for daily living (Psalms 90:12). In spite of his pain and losses, Moses justified God in all things (as David in Psalms 51:4). Moses was literally saying, "Lord, you have no fault in all our calamities; we brought these on ourselves. But graciously sustain us with Your mercy and teach us wisdom." – this mindset is what we all as believers should emulate.

Only a true child of God can make a prayer of submission as in Psalm 91. Never let Satan make you feel God has abandoned you in your predicament. If God is using an experience to chastise you, then it's a proof of His eternal love for you, so that you can be a partaker of His holy nature (Hebrews 12:7-11). As you pray for the comfort of the Holy Spirit, ask Him to grant you wisdom in all things.