'Bread' in the Bible

You must not eat any yeast with it. Instead, for seven days eat bread without yeast the bread of affliction because you left the land of Egypt in haste. Remember the day you went out of the land of Egypt for the rest of your lives.

Eat bread without yeast for six days. Then on the seventh day, hold an assembly to the LORD your God. Don't do any work."

"Every male must appear in the presence of the LORD your God three times a year at the place where he will choose: for the Festival of Unleavened Bread, the Festival of Seven Weeks, and the Festival of Tents. He must not appear in the LORD's presence empty-handed,

You didn't have bread to eat or wine or anything intoxicating to drink, so that you would learn that I am the LORD your God.