Verses with the word boast in the Old Testament (10 verses):

1 Kings 20:11
And the king of Israel answered and said, Tell him, Let not him that girdeth on his harness boast himself as he that putteth it off.

2 Chronicles 25:19
Thou sayest, Lo, thou hast smitten the Edomites; and thine heart lifteth thee up to boast: abide now at home; why shouldest thou meddle to thine hurt, that thou shouldest fall, even thou, and Judah with thee?

Psalms 34:2
My soul shall make her boast in the LORD: the humble shall hear thereof, and be glad.

Psalms 44:8
In God we boast all the day long, and praise thy name for ever. Selah.

Psalms 49:6
They that trust in their wealth, and boast themselves in the multitude of their riches;

Psalms 94:4
How long shall they utter and speak hard things? and all the workers of iniquity boast themselves?

Psalms 97:7
Confounded be all they that serve graven images, that boast themselves of idols: worship him, all ye gods.

Proverbs 27:1
Boast not thyself of to morrow; for thou knowest not what a day may bring forth.

Isaiah 10:15
Shall the axe boast itself against him that heweth therewith? or shall the saw magnify itself against him that shaketh it? as if the rod should shake itself against them that lift it up, or as if the staff should lift up itself, as if it were no wood.

Isaiah 61:6
But ye shall be named the Priests of the LORD: men shall call you the Ministers of our God: ye shall eat the riches of the Gentiles, and in their glory shall ye boast yourselves.