What does Psalms 73:26 mean?

Psalm 73:26 comes from the mouth of Asaph, a Levitical worship leader appointed by David, who wrote this psalm as a wrestling match with one of faith's hardest questions: why do the wicked seem to prosper while the righteous suffer? The psalm opens with Asaph confessing that he nearly lost his footing spiritually because he envied the arrogant, who seemed carefree, healthy, and wealthy despite their godlessness. He admits it was a bitter and painful struggle to make sense of this, until he entered the sanctuary of God and gained a different perspective, one that considered the ultimate destiny of the wicked rather than their temporary circumstances. Verse 26 falls near the resolution of that struggle, as Asaph moves from confusion to settled trust.

In plain language, the verse says this: my body and my inner strength may completely give out, but even then, God remains the strength of my heart and my eternal inheritance. Asaph is not saying he currently feels weak; rather, he is stating a truth that holds even in the worst-case scenario of total physical and emotional collapse. Whatever happens to his flesh — sickness, aging, exhaustion, even death — and whatever happens to his heart, meaning his willpower, courage, or emotional stability, God does not fail. God is the unshakable core beneath the shakable parts of a human being.

Theologically, this verse draws a sharp distinction between what is temporary and what is eternal. The "flesh" and "heart" here represent the whole human person in its finite, decaying