Exodus 34:18

18 “Celebrate the Festival of Unleavened Bread. For seven days eat bread made without yeast, as I commanded you. Do this at the appointed time in the month of Aviv, for in that month you came out of Egypt.

Read Exodus 34:18 Using Other Translations

The feast of unleavened bread shalt thou keep. Seven days thou shalt eat unleavened bread, as I commanded thee, in the time of the month Abib: for in the month Abib thou camest out from Egypt.
"You shall keep the Feast of Unleavened Bread. Seven days you shall eat unleavened bread, as I commanded you, at the time appointed in the month Abib, for in the month Abib you came out from Egypt.
“You must celebrate the Festival of Unleavened Bread. For seven days the bread you eat must be made without yeast, just as I commanded you. Celebrate this festival annually at the appointed time in early spring, in the month of Abib, for that is the anniversary of your departure from Egypt.