John 12:39

For this reason they were unable to believe. For again, Isaiah says:
BSB · Berean Standard Bible
Therefore they could not believe, because that Esaias said again,
KJV · King James Version
For this cause they couldn’t believe, for Isaiah said again:
WEB · World English Bible
For this cause they could not believe, for that Isaiah said again,
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

they
John 5:44; John 6:44; John 10:38; Isaiah 44:18–20; 2 Peter 2:14
because
Isaiah 6:9, 10