Ecclesiastes 11:9-10

21st Century King James Version

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

¹⁰ Therefore remove sorrow from thy heart, and put away evil from thy flesh, for childhood and youth are vanity.