Ezekiel 36:8

⁸ But you, mountains of Israel, you shall shoot forth your branches, and yield your fruit to my people Israel; for they are at hand to come.

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.