'Uncircumcised' in the Bible

To whom shall I speak and testify, that they may hear? Behold, their ear is uncircumcised, and they can't listen. Behold, the word of Yahweh has become a reproach to them. They have no delight in it.

Egypt, and Judah, and Edom, and the children of Ammon, and Moab, and all that have the corners [of their hair] cut off, who dwell in the wilderness; for all the nations are uncircumcised, and all the house of Israel are uncircumcised in heart.