Do Not Be Anxious About Tomorrow

Matthew 6:25-34 develops the demand for undivided allegiance by addressing merimnaō, "to be anxious" or "preoccupied." The opening "therefore" links anxiety about necessities with the preceding warning about serving Mammon. Jesus argues from greater to lesser: if God gives life and body, food and clothing are subordinate needs. The birds and lilies are not examples of inactivity in an absolute sense; rather, they illustrate creatures whose existence does not depend on anxious accumulation or self-secured control.

The reference to adding "one cubit" to one's hēlikia is ambiguous because hēlikia can mean bodily stature or lifespan. Since a cubit is a measure of length, "stature" is possible, but adding a cubit to height would be an extraordinary increase; many interpreters therefore understand the expression metaphorically as adding even a small span to one's life. The "lilies of the field" may designate various wildflowers rather than a specific botanical species, and the comparison with Solomon emphasizes their unmanufactured splendor.

The climax contrasts Gentile-like pursuit of necessities with seeking first God's kingdom and righteousness. "All these things will be added" does not amount to a general promise of prosperity; the immediate referents are basic provisions named throughout the paragraph. The final saying, "sufficient for the day is its own trouble," prevents the section from becoming an assurance that disciples will face no hardship. The passage opposes anticipatory anxiety while acknowledging that each day carries genuine difficulty.

Matthew 6 continues the Sermon on the Mount by shifting from the interpretation of Torah in chapter 5 to the practice of righteousness before God. The first half treats three characteristic acts of Jewish piety: almsgiving, prayer, and fasting. Each follows a similar pattern: Jesus warns against performing the act for human recognition, contrasts such behavior with hidden devotion, and repeats the promise that the Father who sees in secret will reward. The Lord's Prayer stands at the center of this triad and expands the theme from private devotion to God's name, kingdom, provision, forgiveness, and deliverance.

The second half turns from public reputation to material security. Sayings about heavenly treasure, the healthy eye, and serving God rather than Mammon lead into an extended prohibition of anxious preoccupation with food, drink, clothing, and tomorrow. The unifying issue is divided allegiance: whether one's conduct is governed by human approval, wealth, or trust in the heavenly Father. Matthew thereby develops the "greater righteousness" of 5:20 as an integrated orientation toward God rather than merely external religious performance.