Ezekiel 3:27

²⁷ And in My speaking with thee, I do open thy mouth, and thou hast said unto them: Thus said the Lord Jehovah; the hearer doth hear, and the forbearer doth forbear; for a rebellious house [are] they.

Lip

'A lip' in general signifies doctrine.

In Isaiah 6:3, 7, this signifies the interior parts of a person and thus internal worship where adoration is grounded.

In Isaiah 37:29, this signifies the thought of the understanding

In Malachi 2:6, 7, this denotes doctrine grounded in charity.

² `Son of man, speak unto the sons of thy people, and thou hast said unto them: A land -- when I bring in against it a sword, And the people of the land have taken one man out of their borders, And made him to them for a watchman.