12. in them—in God's works (Ec 3:11), as far as relates to man's duty. Man cannot fully comprehend them, but he ought joyfully to receive ("rejoice in") God's gifts, and "do good" with them to himself and to others. This is never out of season (Ga 6:9, 10). Not sensual joy and self-indulgence (Php 4:4; Jas 4:16, 17).