Job 1:4-5
4 His sons used to take turns holding feasts in their homes, and they would invite their three sisters to eat and drink with them.
5 When a period of feasting had run its course, Job would send and have them purified. Early in the morning he would sacrifice a burnt offering for each of them, thinking, “Perhaps my children have sinned and cursed God in their hearts.” This was Job’s regular custom.