Their ear — An uncircumcised ear, signifies the rejecting of instruction; an uncircumcised heart, an obstinate and rebellious will. They cannot — They had brought themselves under that incapacity by their obstinacy and wilfulness. A reproach — They laugh at it, and scorn it.
Related Commentaries of Jeremiah 6:10
Jeremiah 6:10
10 To whom shall I speak, and give warning, that they may hear? behold, their ear is uncircumcised, and they cannot hearken: behold, the word of the LORD is unto them a reproach; they have no delight in it.