Jerome

To whom shall I speak, and whom shall I answer, that he may hear? Behold, their (or your) ears are uncircumcised, and they cannot hear. They cannot hear because they have refused to circumcise their ears; yet the impossibility that comes from contempt and unbelief is not without punishment. Therefore, if anyone does not receive the words of God, neither does he have the understanding of His commandments, he has uncircumcised ears. …

Commentary on Jeremiah ↗