Jeremiah 6:10
To whom shall I speak, and give warning, that they may hear? behold, their ear is uncircumcised, and they cannot listen: behold, the word of the LORD is to them a reproach; they have no delight in it.
Torrey's Topical Textbook—AKJV

Acts 7:51
You stiff necked and uncircumcised in heart and ears, you do always resist the Holy Ghost: as your fathers did, so do you.
Torrey's Topical Textbook—AKJV