“So teach us to number our days, that we may present to You a heart of wisdom” (Psalm 90:12).
The focus in the early part of Psalm 90 is on the contrast between the eternalness of God and the transience of humanity. God has been the dwelling place of faithful people “in all generations” (v. 1). The One who created the world is the God who exists “from everlasting to everlasting” (v. 2). He is not subject to time as we know it (v. 3). Humans, on the other hand, are just the opposite. We know the ravages of time. Our physical bodies came from dust and will return there (v. 3). Time, for us, comes and goes like grass that flourishes and then withers (v. 6). There are limits on our longevity (v. 10).
It is this relative brevity of human life that prompts the psalmist to appeal to God for instruction regarding the wise use of the time we have. It is a perspective that appears in other places in the Scriptures. “LORD, make me to know my end and what is the extent of my days; let me know how transient I am” (Psalms 39:4). “Therefore be careful how you walk, not as unwise men but as wise, making the most of your time, because the days are evil” (Ephesians 5:15–16). “Conduct yourselves with wisdom toward outsiders, making the most of the opportunity” (Colossians 4:5).
Time is short, even for those who have been blessed with long life. Rather than becoming obsessed with how much time we have left, perhaps our time would be better spent making good use of the time we have been given. The only time we really have is the moment in which we are living. Anything beyond the present is not promised to us. “Yet you do not know what your life will be like tomorrow. You are just a vapor that appears for a little while and then vanishes away” (James 4:13–14). Make today count as you serve God!
God loves you!