The Apostle Paul
2 Corinthians 3:14ESV·traditional attribution

But their minds were hardened. For to this day, when they read the old covenant, that same veil remains unlifted, because only through Christ is it taken away.

John Calvin Reformed @genevareformer

14. Their understandings were blinded. He lays the whole blame upon them, inasmuch as it was owing to their blindness, that they did not make any proficiency in the doctrine of the law. He afterwards adds, That veil remaineth even until this day.

Matthew Henry Presbyterian @wholebiblehenry

In these verses the apostle draws two inferences from what he had said about the Old and New Testament: - I. Concerning the duty of the ministers of the gospel to use great plainness or clearness of speech. They ought not, like Moses, to put a veil upon their faces, or obscure and darken those things which they should make plain.

Commenting on 2 Corinthians 3:12-18

John Gill Reformed Baptist @doctorgill

But their minds were blinded,.... This confirms the sense given of the foregoing verse, and shows, that not the Israelites only in Moses's time, but the Jews in the times of the Gospel, had their minds so blinded, that they could not behold the glory of the Gospel, nor Christ the end of the law; see Rom 11:7.