Ephesians 5:17
"Wherefore be ye not unwise, but understanding what the will of the Lord is."
Cross References (ranked by relevance)
And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.
In every thing give thanks: for this is the will of God in Christ Jesus concerning you.
For this cause we also, since the day we heard it, do not cease to pray for you, and to desire that ye might be filled with the knowledge of his will in all wisdom and spiritual understanding;
See then that ye walk circumspectly, not as fools, but as wise,
For my people is foolish, they have not known me; they are sottish children, and they have none understanding: they are wise to do evil, but to do good they have no knowledge.
That he no longer should live the rest of his time in the flesh to the lusts of men, but to the will of God.
Walk in wisdom toward them that are without, redeeming the time.
If any man will do his will, he shall know of the doctrine, whether it be of God, or whether I speak of myself.
The fear of the LORD is the beginning of wisdom: a good understanding have all they that do his commandments: his praise endureth for ever.
And unto man he said, Behold, the fear of the LORD, that is wisdom; and to depart from evil is understanding.
Keep therefore and do them; for this is your wisdom and your understanding in the sight of the nations, which shall hear all these statutes, and say, Surely this great nation is a wise and understanding people.
The wisdom of the prudent is to understand his way: but the folly of fools is deceit.
Buy the truth, and sell it not; also wisdom, and instruction, and understanding.
Then shalt thou understand the fear of the LORD, and find the knowledge of God.
Make me to understand the way of thy precepts: so shall I talk of thy wondrous works.