Ezekiel 36:7

⁷ therefore thus says the Lord Yahweh: I have sworn, [saying], Surely the nations that are around you, they shall bear their shame.

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.