But they that wait on the LORD shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary…
We find the same idea also in the New Testament with spiritual applications. There, throughout, we find the Divine life in man described as a "walk." To "walk worthy of his high vocation" is the supreme exploit of the Christian's faith. Other images are used; those of the runner in the stadium, and the wrestler in the arena; but it is always on the walking that stress is laid. It is the daily walk along the beaten path that reveals the depth and sincerity of our religion. Paul had had his eagle "flights," but he did not make much of them. "Caught up into the third heaven" he had seen "visions and revelations"; but he does not appeal to them as any sign of special grace. He had "run" swiftly to and fro on many an errand of evangelisation; but he does not dwell on these as having called forth any remarkable manifestations of the Divine helpfulness. It was as he pursued the ordinary routine of his ministry along the common ways, with the humbling "thorn" ever rankling in his flesh, that he felt the need of and received special succour. It was in this greater exigency that his inner ear caught the promise, "My grace is sufficient for thee."
Parallel VersesKJV: But they that wait upon the LORD shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint.