The Bible teaches that God is omniscient (Isaiah 46:9–10; Hebrews 4:13; 1 John 3:20). Because of that, He, of course, knows the entire future, including the date that each of us will die (Job 14:5; Psalm 139:16). Thankfully, the Lord doesn’t share that information with us. Rather, Scripture teaches us to make the best use of our time on Earth, knowing that it is limited. In fact, the Bible shows that awareness of our limited time makes us wiser (Psalm 90:12), likely because it helps us to prioritize what is important. It also teaches us humility since our life is not ours to plan at will, but we’re to be aware that God’s will is what ultimately prevails (James 4:13-15). Scripture shows that the best use of our time is in glorifying God as doing so has the most lasting significance for us and others (Matthew 6:19-20; 1 Corinthians 15:58).
From a human perspective, the way we live offers us a certain level of control over the time of our death. For example, a healthy lifestyle will likely lead to a longer lifetime. A person involved in a dangerous lifestyle or job is also more likely to die younger. Even the extreme example of suicide appears to offer full control of ending one's life at the time of his or her choosing. Yet from God's perspective, He already knows the end from the beginning. No matter the choices we make in life, He already knows the outcome of those choices. Further, He has a divine plan that supersedes our human plans regarding the length of our lives.We don’t know how long our life will be, but we are called to live each day faithfully and fully as unto the Lord, knowing that each day is a gift from Him. James 4:13-15 offers another example of how to live based on the uncertainty of tomorrow: "Come now, you who say, 'Today or tomorrow we will go into such and such a town and spend a year there and trade and make a profit'—yet you do not know what tomorrow will bring. What is your life? For you are a mist that appears for a little time and then vanishes. Instead you ought to say, 'If the Lord wills, we will live and do this or that.'"
Acknowledging that our lives are ultimately in God’s hands should shift the way we approach each day. While we may make plans based on our desires or circumstances, we must recognize that our plans are subject to God’s will. Living with the understanding that life is short encourages us to be intentional with how we use our time—living faithfully, serving others, and glorifying God in all that we do. It also calls us to trust in His sovereignty, knowing that, whether our lives are long or short, our purpose is found in honoring Him each day. As we navigate uncertainty, let’s commit to saying, "If the Lord wills," and live in a way that reflects our trust in His perfect plan for our lives.
Finally, it is essential to believe in the gospel of Jesus today and to live it out because tomorrow is not guaranteed. Hebrews 3:7 shares, "Today, if you hear his voice, do not harden your hearts as in the rebellion." Since no person knows the day of his or her death, we are to believe in Christ and live fully for Him each day, being prepared for the time when we meet Him face to face.