The Scripture behind the Scripture
Man Shall Not Live by Bread Alone
Deuteronomy 8:3 teaches that man does not live by bread alone but by every word from God's mouth. Jesus quotes it to resist the tempter in Matthew 4:4 and Luke 4:4.
“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
“And Jesus answered him, saying, It is written, That man shall not live by bread alone, but by every word of God.”Luke 4:4
In its own place
In its own place. Deuteronomy records Moses instructing Israel before entering the promised land, urging them to remember the lessons of their forty years in the wilderness. In chapter 8 Moses recalls that God humbled and tested Israel, letting them hunger and then feeding them with manna, which they and their fathers had not known, that he might teach them that man doth not live by bread only, but by every word that proceedeth out of the mouth of the Lord doth man live. In its original setting this is a lesson drawn from the wilderness experience, meant to instill trust and dependence on God. The manna taught Israel that their life came not merely from ordinary food but from God's provision and his word. The hunger was a discipline, testing whether they would trust and obey the Lord. Moses warns the people not to forget this when they come into a land of plenty and are tempted to think their own strength has made them rich. The verse teaches that true life is sustained by dependence on God and obedience to his word, not by bread alone. It is covenant instruction about trusting God through testing, learned in the school of the desert.
Where the New Testament takes it up
This is a direct quotation, spoken by Jesus in the wilderness temptation. After fasting forty days, Jesus is hungry, and the tempter urges him to command stones to become bread. In Matthew 4:4 and Luke 4:4 Jesus answers, It is written, Man shall not live by bread alone, but by every word that proceedeth out of the mouth of God, quoting Deuteronomy 8:3. He follows the Greek text. The setting is deliberately significant, for Jesus is in the wilderness, hungry, being tested, exactly as Israel was, and he responds to each temptation by quoting from Deuteronomy 6 to 8, the very chapters recalling Israel's wilderness testing. Where Israel grumbled and failed the test of hunger, Jesus trusts and obeys, refusing to use his power to serve himself apart from the Father's will. His use of the verse is faithful to its original meaning, that life depends on God and his word rather than on bread. By citing this text, Jesus not only rebuffs the tempter but shows himself succeeding in the very trial Israel failed, living by every word from God's mouth even in extreme hunger. The temptation account presents Jesus as the true Israel and the obedient Son, armed with Scripture.
How it points to Christ
How it points to Christ. In the wilderness Jesus stands where Israel stood, hungry and tested, but he does not fail. Israel doubted God's provision and craved bread, while Jesus trusts the Father and lives by his word. By quoting Deuteronomy 8:3, Jesus shows that his whole life is sustained by obedience to God, not by satisfying his own appetite on his own terms. He is the true and faithful Son who passes the test Israel failed, the second Adam and the true Israel who overcomes temptation by clinging to Scripture. And he who refused to make bread for himself would later break bread for the multitudes and give himself as the true bread from heaven, so that those who feed on him might have life. The word by which he lived is the same word he speaks to us, and in him the lesson of the manna is fulfilled.
Questions people ask
Why does Jesus quote Deuteronomy in the temptation?
All three of his answers to the tempter come from Deuteronomy 6 to 8, the chapters recalling Israel's wilderness testing. Jesus, tested in the wilderness like Israel, deliberately relives that trial and succeeds where the nation failed, showing himself the true and obedient Son.
What does the verse mean?
Learned from the manna, it teaches that true life is sustained by dependence on God and his word, not merely by physical food. Jesus applies it faithfully, refusing to serve himself apart from the Father's will even when starving.