Ecclesiastes 11:6-9

⁶In the morning sow your seed, and in the evening let not your hand be slack: for you know not what sort shall prosper, whether this or that, or whether both shall be good alike.

⁷Moreover the light is sweet, and it is good for the eyes to see the sun.

⁸For even if a man should live many years, and rejoice in them all; yet let him remember the days of darkness; for they shall be many. All that comes is vanity.

⁹Rejoice, O 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 blameless, but not in the sight of your eyes: yet know that for all these things God will bring you into judgement.