'Boast' in the Bible

The brother of humble circumstances should boast in his exaltation,

but the one who is rich should boast in his humiliation because he will pass away like a flower of the field.

In the same way, the tongue is a small part of the body, yet it can boast of great achievements. A huge forest can be set on fire by a little flame.

but if ye have bitter emulation and strife in your hearts, do not boast and lie against the truth.

But as it is, you boast in your arrogance. All such boasting is evil.