...only be thou valiant for me, and fight the Lord’s battles…   
(I Samuel 18:17).

And he also that is valiant, whose heart is as the heart of a lion, shall utterly melt: for all Israel knoweth that thy  father is a mighty man, and they which be with him are valiant men 
(II Samuel 17:10).

...they were valiant men of might in their generations… 
(I Chronicles 7:2)
 

Be of good courage, and let us behave ourselves valiantly for our people, for the cities of our God: and let the Lord do that which is good in his sight  (I Chronicles 19:13).

The voice of rejoicing and salvation is in the tabernacles of the righteous: the right hand of the Lord doeth valiantly.  
(Psalm 118:15,16).

And they bend their tongues like their bow for lies: but they are not valiant for the truth upon the earth; for they proceed from evil to evil, and they know not me, saith the Lord  
(Jeremiah 9:3)

Who through faith subdued kingdoms, wrought righteousness, obtained promises, stopped the mouths of lions, Quenched the violence of fire, escaped the edge of the sword, out of weakness were made strong, waxed valiant in fight, turned to flight the armies of the aliens  
(Hebrews 11:33,34).