These things said Esaias, when he saw his glory. — The better text is,... because he saw His glory. (Comp. Note on the reading in John 12:17.) The result of seeing His glory was that he spake of Him. This is St. John’s interpretation of the prophecy. Isaiah himself tells us, “I saw also the Lord sitting upon a throne, high and lifted up, and his train filled the temple” (John 6:1). But no man hath seen God at any time. The Word is the express image of His Person. This glory was of the pre-incarnate Word, who was in the beginning with God, and was God.
Related Commentaries of John 12:41
John 12:41
41 These things said Esaias, when he saw his glory, and spake of him.