Job 1:4-5
“His sons used to take turns holding feasts in their homes, and they would invite their three sisters to eat and drink with them.  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.”