Thomas Aquinas Commentary Jeremiah 6:10

"To whom shall I speak and testify, that they may hear? behold, their ear is uncircumcised, and they cannot hearken: behold, the word of Jehovah is become unto them a reproach; they have no delight in it." — Jeremiah 6:10 (ASV)

1. Here, he shows their contempt for the advice that was given.

1. The prophet seeks a suitable audience for his counsel: to whom shall I speak the fruitful words of the Lord; whom shall I call as a witness—“Shall I swear to it?” By this, he signifies how few there are. Whom will he teach knowledge, and what listener will he make to understand? (Isaiah 28:9).

2. He shows the reason for this: they were unwilling to listen. Behold, their ears are uncircumcised, as though filled with the fables of the gentiles. Stiff-necked, and uncircumcised in heart and ear (Acts 7:51).

   And because they spurn what they have heard, behold, the word of the Lord has become a reproach. As it also says, and the word of the Lord has become a reproach to me, and a derision all the day (Jeremiah 20:8).