“Lord, remind me how brief my time on earth will be. Remind me that my days are numbered— how fleeting my life is. You have made my life no longer than the width of my hand. My entire lifetime is just a moment to you; at best, each of us is but a breath.” We are merely moving shadows and all our busy rushing ends in nothing. Psalm 39:4-6
Teach us to number our days, that we may gain a heart of wisdom. Psalm 90:12
Because our time is limited, we should limit what we do with our time.