In Jewish life, there are concrete practices that embed the Word of God into daily routines. Two representative examples are the Mezuzah (a small scripture case fixed on the doorpost) and the Tefillin (phylacteries, small scripture boxes used in prayer).

The Mezuzah is attached to the doorframe of a house. Inside it is a parchment scroll containing passages from Deuteronomy 6:4–9 and 11:13–21, beginning with “Hear, O Israel.” Each time a Jewish person enters or leaves the house, they look at it or touch it, reminding themselves that the Word of God stands at the entrance and exit of their life.

Tefillin, on the other hand, represent a more active practice. During prayer, small boxes containing Scripture are bound to the arm and the forehead. This symbolizes that a person’s thoughts (the head) and actions (the hand) are to be governed by the Word of God.

These practices are not merely external religious forms. They continually raise a fundamental question: What does a person truly live by?

Naturally, people tend to focus on what they will eat and how they will sustain their lives. Much of our time is occupied with concerns about survival. Yet Scripture clearly declares, “Man shall not live by bread alone.” This does not deny physical needs, but it clarifies that they are not the essence of life. The statement continues, “but by every word that comes from the mouth of God.” True life is sustained by the Word of God.

When Jesus was tempted in the wilderness, He quoted this very passage. The devil urged Him to turn stones into bread. This was not merely a suggestion to perform a miracle, but a deeper temptation: to secure His own survival by His own power. Jesus’ response redirected the focus. Human life is not sustained by bread alone, but by the Word of God.

In the Gospels, Jesus repeatedly returns to this theme. After the feeding of the five thousand, people sought Him again, hoping for more food. But Jesus told them not to labor for food that spoils, but for food that endures to eternal life. He then revealed Himself as the “bread of life.” This points beyond physical nourishment to the true source of life that comes from Him.

Seen in this light, both the Mezuzah and the Tefillin point in the same direction. In entering and leaving, in thinking and acting, a person is constantly being asked, “What are you living by?” When the focus remains only on food and survival, a person often becomes more anxious and restless. But when the Word of God becomes central, even if circumstances do not change, there is order and stability within.

Therefore, our focus must shift from survival to life itself. Not bread, but the Word; not merely external provision, but relationship with God. When the Word that comes from the mouth of God becomes our life, we begin to live a life that is truly grounded and unshakable.