'Lips' in the Bible

And Moses spake before the LORD, saying, Behold, the children of Israel have not hearkened unto me; how then shall Pharaoh hear me, who am of uncircumcised lips?

And Moses said before the LORD, Behold, I am of uncircumcised lips, and how shall Pharaoh hearken unto me?

You are not to make use of the name of the Lord your God for an evil purpose; whoever takes the Lord's name on his lips for an evil purpose will be judged a sinner by the Lord

“Pay strict attention to everything I have said to you. You must not invoke the names of other gods; they must not be heard on your lips.