Verses with the word boast in the Apocrypha (4 verses):

Wisdom of Solomon 2:16
We are esteemed of him as counterfeits: he abstaineth from our ways as from filthiness: he pronounceth the end of the just to be blessed, and maketh his boast that God is his father.

Sirach 7:5
justify not thyself before the Lord; and boast not of thy wisdom before the king.

Sirach 10:26
Be not overwise in doing thy business; and boast not thyself in the time of thy distress.

Sirach 11:4
Boast not of thy clothing and raiment, and exalt not thyself in the day of honour: for the works of the Lord are wonderful, and his works among men are hidden.