3:14 minds were blinded. See II Corinthians 4:3-4. Ultimately, the blindness of mind which fails to comprehend the gospel is the work of Satan.
3:14 old testament. This is the only verse in the Bible where the “old testament” is referred to by that name. The phrase “new testament” (or “new covenant,” which is the same Greek phrase) is mentioned nine times—first in Matthew 26:28, last in Hebrews 12:24.