He caused you to be hungry and then he fed you with special food called manna. Neither you nor your fathers had eaten this food before. By this, he taught you that a man does not live only on bread. A man also needs every word that God speaks to him. These words will teach him how to live a good life. Deuteronomy 8:3
他苦煉你，任你飢餓，將你和你列祖所不認識的嗎哪賜給你吃，使你知道，人活着不是單靠食物，乃是靠耶和華口裏所出的一切話。
申命記 8:3