Ezekiel 3:24

²⁴ And come into me doth a spirit, and causeth me to stand on my feet, and He speaketh with me, and saith unto me, `Go in, be shut up in the midst of thy house.

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.