Ezekiel 36:10

¹⁰ and I will multiply men on you, all the house of Israel, even all of it; and the cities shall be inhabited, and the waste places shall be built;

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.

⁷ He touched my mouth with it, and said, "Behold, this has touched your lips; and your iniquity is taken away, and your sin forgiven."