'Boastings' in the Bible

Should your boastings make men hold their peace? When you mock, shall no man make you ashamed?

We have heard of the pride of Moab, that he is very proud; even of his arrogance, his pride, and his wrath. His boastings are nothing.

I know his wrath, says Yahweh, that it is nothing; his boastings have worked nothing.