Exodus 12 39
Since their bread dough didn't have any yeast, the Israelites baked what they had brought out of Egypt into loaves without yeast. This was because when they were driven out of Egypt they had to leave in a hurry and didn't have time to prepare food for themselves.
Compare with other 3 random translations
KJV Exodus 12:39And they baked unleavened cakes of the dough which they brought forth out of Egypt, for it was not leavened; because they were thrust out of Egypt, and could not tarry, neither had they prepared for themselves any victual.
LSV Exodus 12:39And they bake unleavened cakes with the dough which they have brought out from Egypt, for it has not fermented; for they have been cast out of Egypt, and have not been able to delay, and also they have not made provision for themselves.
WEB Exodus 12:39They baked unleavened cakes of the dough which they brought out of Egypt; for it wasn’t leavened, because they were thrust out of Egypt, and couldn’t wait, and they had not prepared any food for themselves.