The Ear of the Wicked: Uncircumcised
Source: TTT
Jeremiah 6:10
To whom can I give this warning? Who will listen to me? Look, their ears are closed, so they cannot hear. See, the word of the LORD has become offensive to them; they find no pleasure in it.
Acts 7:51
You stiff-necked people with uncircumcised hearts and ears! You always resist the Holy Spirit, just as your fathers did.