Psalms 73 is a psalm of Asaph written out of a hard spiritual crisis. He looks around and is troubled because “the wicked” seem to prosper, while the faithful often suffer. His feet had “well nigh slipped,” not because he stopped believing God exists, but because he could not reconcile God’s justice with what he saw in the world. The turning point of the psalm comes when he goes “into the sanctuary of God,” and there he “understood” the end of the wicked. The whole song moves from envy and confusion to repentance, clarity, and settled trust. Psalms 73:26 stands near the end of that movement, where Asaph’s faith is no longer anchored in outward circumstances but in God Himself.

The verse reads, “My flesh and my heart faileth: but God is the strength of my heart, and my portion for ever.” The first clause, “My flesh and my heart faileth,” speaks in the plain language of human limitation. “Flesh” points to the mortal, bodily side of life: physical weakness, sickness, aging, weariness, and the fact that a man can be brought low no matter how righteous he tries to be. “Heart” in the psalm’s world is the inner man, the seat of thought, desire, conscience, and courage. For Asaph, the crisis has not only been external; it has worn him down internally. His strength fails in both body and soul. This is an honest confession that even a believer may reach the end of himself, where neither health, nor stamina, nor emotional steadiness can be relied upon as a foundation.

Against that collapse stands the turning word, “but.” “But God is the strength of my heart.” The psalm does not deny weakness; it answers weakness with God’s sufficiency. The phrase “strength of my heart” is more than comfort; it is the idea of God as the sustaining power of the inner man, the One who bears up the will and faith when they cannot bear themselves. Asaph has learned that the stability he wanted from the world’s fairness, or from his own righteousness, must actually come from communion with God. This fits the immediate context of Psalms 73, where the wicked are described as standing in “slippery places,” while the believer’s security is not in prosperous conditions but in God’s grasp: “Nevertheless I am continually with thee: thou hast holden me by my right hand.” When “my flesh and my heart faileth,” what keeps him from falling is that God holds him, and that holding becomes experienced as strength within.

The final phrase, “and my portion for ever,” carries rich Old Testament symbolism. A “portion” is an allotted share, an inheritance, what falls to someone as his lasting possession. In the psalm, Asaph has wrestled with the apparent “portion” of the wicked—ease, wealth, and influence—and he has felt the sting of his own chastening. Yet now he declares that God Himself is his portion. This turns the whole argument of the psalm inside out: even if the wicked have the whole world for a time, their end is loss; even if the righteous lose much in this life, their end is God. “For ever” expands the horizon beyond the present age. Asaph’s envy dissolves because he is no longer measuring life by short-term outcomes; he is measuring it by the permanence of belonging to God. The wicked’s prosperity is temporary, but God as “portion” is eternal.

In the broader flow of Psalms 73, this verse gathers up the psalm’s major themes. It answers the problem of envy by re-centering the heart on God rather than on appearances. It answers the pain of suffering by acknowledging that the believer may indeed “fail,” yet not finally be forsaken. It answers the question of justice by pointing to “for ever,” where God’s final reality outweighs present confusion. It also expresses the psalm’s deepest relational truth: the greatest good is not a change of circumstances but the possession of God. That is why the psalm concludes nearby with, “But it is good for me to draw near to God.” Psalms 73:26 is significant because it names the believer’s anchor when everything else proves fragile: even when the body weakens and the inner life trembles, God remains the inward strength and the eternal inheritance.