Job 1:4-5

4Job’s sons would take turns holding feasts in their homes, and they would invite their three sisters to eat and drink with them.

5And when the days of feasting were over, Job would send for his children to purify them, rising early in the morning to offer burnt offerings for all of them. For Job thought, “Perhaps my children have sinned and cursed God in their hearts.” This was Job’s regular practice.