The fulfillment of Isaiah's prophecy: V. 37. But though He had done so many miracles before them, yet they believed not on Him, V. 38. that the saying of Esaias the Prophet might be fulfilled, which he spake, Lord, who hath believed our report, and to whom hath the arm of the Lord been revealed?
The results of Christ's entire ministry, on the whole, had been very discouraging. Neither His words nor His miracles had had the desired result. And in this, as the evangelist here points out, the judgment of God upon unbelief was carried out.
He refers to two Old Testament prophecies, both from the Book of Isaiah.
In Is. 53, 1 the Messiah complains of the fact that His teaching is not believed, and that the arm of the Lord, (the might of the Lord) as revealed in the miracles, is hidden from the multitude.