New Living Translation
Isaiah was referring to Jesus when he said this, because he saw the future and spoke of the Messiah’s glory.

American Standard Version
These things said Isaiah, because he saw his glory; and he spake of him.

Berean Study Bible
Isaiah said these things because he saw Jesus’ glory and spoke about Him.

Douay-Rheims Bible
These things said Isaias, when he saw his glory, and spoke of him.

English Revised Version
These things said Isaiah, because he saw his glory; and he spake of him.

King James Bible
These things said Esaias, when he saw his glory, and spake of him.

World English Bible
Isaiah said these things when he saw his glory, and spoke of him.

Young's Literal Translation
these things said Isaiah, when he saw his glory, and spake of him.

John 12:41 Additional Translations ...