Deuteronomy 16:16

16. Three times in a year shall all thy males appear The women were not required to attend these festivals, yet it is evident that both women and children went to them. It has been questioned whether the Israelites had been accustomed to observing stated religious feasts in Egypt. The expressions used in Exodus 3:18; Exodus 5:1, seem to imply that they had such observances. The latter passage is very suggestive: “Let my people go, that they may hold a feast unto me in the wilderness.”