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.
(Odkazy: Arcana Coelestia 1284, Arcana Coelestia 1288)
Ezekiel 3:4-7
4
He said to me, Son of man, go to the house of Israel, and speak my words to them.
5
For you are not sent to a people of a strange speech and of a hard language, but to the house of Israel;
6
not to many peoples of a strange speech and of a hard language, whose words you can not understand. Surely, if I sent you to them, they would listen to you.
7
But the house of Israel will not listen to you; for they will not listen to me: for all the house of Israel are obstinate and hard-hearted.