Ecclesiastes 11:9-10

⁹Rejoice, young man, in your youth, and let your heart cheer you in the days of your youth, and walk in the ways of your heart, and in the sight of your eyes; but know that for all these things God will bring you into judgment.

¹⁰Therefore remove sorrow from your heart, and put away evil from your flesh; for youth and the dawn of life are vanity.