Judges 7:4
"And the LORD said unto Gideon, The people are yet too many; bring them down unto the water, and I will try them for thee there: and it shall be, that of whom I say unto thee, This shall go with thee, the same shall go with thee; and of whomsoever I say unto thee, This shall not go with thee, the same shall not go."
Cross References (ranked by relevance)
There is no king saved by the multitude of an host: a mighty man is not delivered by much strength.
But the LORD said unto Samuel, Look not on his countenance, or on the height of his stature; because I have refused him: for the LORD seeth not as man seeth; for man looketh on the outward appearance, but the LORD looketh on the heart.
But he knoweth the way that I take: when he hath tried me, I shall come forth as gold.
Oh let the wickedness of the wicked come to an end; but establish the just: for the righteous God trieth the hearts and reins.
And Jonathan said to the young man that bare his armour, Come, and let us go over unto the garrison of these uncircumcised: it may be that the LORD will work for us: for there is no restraint to the LORD to save by many or by few.
And it came to pass after these things, that God did tempt Abraham, and said unto him, Abraham: and he said, Behold, here I am.
For thou, O God, hast proved us: thou hast tried us, as silver is tried.