'Brag' in the Bible

Adoni-bezek used to brag, "Seventy kings without thumbs and big toes used to eat what was left under my table. God has repaid me for what I've done." They brought him to Jerusalem, and he later died there.

But the king of Israel replied, "Tell him, "The one who is starting to strap on his battle armor should never brag like the one who is taking it off.'"

Those who seek my life lay snares for me; those who seek to do me harm brag all day long about their wicked planning.

For they persecute those whom you have struck, and they brag about the pain of those you have wounded.

I will say to the proud, "Don't brag," and to the wicked, "Don't vaunt your strength.

Never brag about the day to come, because you don't know what it might bring.