What day are we talking about? The fifteenth, or the twenty-second? It is the fifteenth! The events of the week have not yet unfolded. God has spoken, through Moses, on the fifteenth. And it is very likely that this occurred during a Sabbath message that Moses was giving to the people of Israel while they were in the wilderness.
So then, "at evening" (at ba erev)—do you see that? At evening, at sunset, of the fifteenth day, something was going to happen to let those people know that God had brought them out. Now, what was it? It was not the bread, the manna. That did not come until Sunday morning, the next day. But something was going to happen at sunset that was going to let them know that God was with them, and providing.
