'Unleavened Bread' in the Bible

a certain number every day, offering them up as Moses commanded for the Sabbaths, the New Moons, and the three annual feasts—the Feast of Unleavened Bread, the Feast of Weeks, and the Feast of Booths (Tabernacles).

Now many people were gathered at Jerusalem to celebrate the Feast of Unleavened Bread in the second month; it was a very large assembly.

The Israelites who were present in Jerusalem celebrated the Feast of Unleavened Bread for seven days with great joy. The Levites and priests praised the Lord day after day, singing to the Lord with loud instruments.

Thus the sons of Israel who were present celebrated the Passover at that time, and the Feast of Unleavened Bread for seven days.