A Scripture Jesus quoted
Man Shall Not Live by Bread Alone
Hungry after forty days in the wilderness, Jesus answered the tempter's dare to make bread from stones by reaching back to Moses. He quoted a line spoken to Israel about their own forty years in the desert, insisting that life is fed by every word from God's mouth, not by bread only.
“And he humbled thee, and suffered thee to hunger, and fed thee with manna, which thou knewest not, neither did thy fathers know; that he might make thee know that man doth not live by bread only, but by every word that proceedeth out of the mouth of the LORD doth man live.”Deuteronomy 8:3
“But he answered and said, It is written, Man shall not live by bread alone, but by every word that proceedeth out of the mouth of God.”Matthew 4:4
The Scripture in its own place
Moses is preaching to a new generation on the edge of the promised land, remembering the wilderness years behind them. He tells them God let them hunger and then fed them with manna, food they had never known, so they would learn a lesson deeper than their stomachs. The point was not merely survival but dependence: bread keeps a body alive, yet a person truly lives by trusting and obeying whatever God speaks. The manna itself preached this, appearing each dawn, forbidden to be hoarded, teaching Israel to look to their Provider day by day rather than to their own stores or strength.
How and when Jesus used it
In the wilderness, driven there by the Spirit and worn thin by forty days without food, Jesus faced the same test Israel faced and often failed. The tempter urged Him to use His power to feed Himself, to seize provision on His own terms rather than wait on His Father. Jesus answered not with a display but with Scripture, quoting the very verse about manna. He chose to stay hungry and dependent, refusing to let physical need override trust in God's word and timing. Where Israel murmured and demanded, the Son submitted, treating His Father's word as more essential to His life than the bread His body craved.
What it reveals about Jesus
Jesus reads Israel's story as His own and steps into it to succeed where the nation stumbled. He does not argue with the tempter or lean on His divine privileges; He submits to a written command as a man under God's word. This reveals a Savior who lives by obedience, not exemption, and who honors Scripture as binding even in extremity. He is the true Israel and the true Son, embodying the trust Deuteronomy asked for. He is also the living Bread that verse foreshadowed, the Word made flesh, so that His very being answers the hunger no loaf can fill.
Questions people ask
Where did Jesus say man shall not live by bread alone?
Jesus spoke these words in the wilderness during His temptation, recorded in Matthew 4 and Luke 4. Weakened by forty days of fasting, He answered the tempter's challenge to turn stones into bread by quoting Deuteronomy 8:3, the verse Moses had spoken to Israel about the daily manna, insisting that a person's true life is sustained by every word from God's mouth more deeply than by any bread or food.
What does living by every word of God mean?
It means a person's true life is fed by trusting and obeying whatever God speaks, not merely by meeting physical needs. Moses taught this through the manna, which came fresh each morning to train Israel in daily dependence on their Provider. Jesus applied it to Himself, choosing obedience over self-supply, showing that God's word is essential nourishment for the soul.