Ezekiel 3:23

²³ And I rise and go forth unto the valley, and lo, there the honour of Jehovah is standing as the honour that I had seen by the river Chebar, and I fall on my face.

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.

¹⁰ Finally, be strong in the Lord, and in the strength of his might.