Judith 8:14

14 For ye cannot find the depth of the heart of man, neither can ye perceive the things that he thinketh: then how can ye search out God, that hath made all these things, and know his mind, or comprehend his purpose? Nay, my brethren, provoke not the Lord our God to anger.

Judith 8:14 In-Context

12 And now who are ye that have tempted God this day, and stand instead of God among the children of men?
13 And now try the Lord Almighty, but ye shall never know any thing.
14 For ye cannot find the depth of the heart of man, neither can ye perceive the things that he thinketh: then how can ye search out God, that hath made all these things, and know his mind, or comprehend his purpose? Nay, my brethren, provoke not the Lord our God to anger.
15 For if he will not help us within these five days, he hath power to defend us when he will, even every day, or to destroy us before our enemies.
16 Do not bind the counsels of the Lord our God: for God is not as man, that he may be threatened; neither is he as the son of man, that he should be wavering.

The Brenton translation of the Septuagint is in the public domain.