Strong H2287 חָגַג châgag · to celebrate

Exodus

1. Exodus 5:1
   And afterward Moses and Aaron went in, and told Pharaoh, Thus saith the Lord God of Israel, Let my people go, that they may hold a feast unto me in the wilderness.
2. Exodus 12:14
   And this day shall be unto you for a memorial; and ye shall keep it a feast to the Lord throughout your generations; ye shall keep it a feast by an ordinance for ever.
3. Exodus 23:14
   Three times thou shalt keep a feast unto me in the year.