Ephesians 5:17  Therefore do not be unwise, but understand what the will of the Lord is.

What is the will of the Lord?

Jeremiah 31:34 No more shall every man teach his neighbor, and every man his brother, saying, ‘Know the Lord,’ for they all shall know Me, from the least of them to the greatest of them, says the Lord. For I will forgive their iniquity, and their sin I will remember no more.”

John 17:3  And this is eternal life, that they may know You, the only true God, and Jesus Christ whom You have sent.

1 John 2:27  But the anointing which you have received from Him abides in you, and you do not need that anyone teach you; but as the same anointing teaches you concerning all things, and is true, and is not a lie, and just as it has taught you, you will abide in Him.

The will of the Lord our God is that we know Him. He has given us His Spirit, and has promised to be with us always even to the end of the age. His Spirit is the anointing that abides in us and teaches us and leads us into all truth.

Philippians 3:12 Not that I have already attained, or am already perfected; but I press on, that I may lay hold of that for which Christ Jesus has also laid hold of me. 13 Brethren, I do not count myself to have apprehended; but one thing I do, forgetting those things which are behind and reaching forward to those things which are ahead, 14 I press toward the goal for the prize of the upward call of God in Christ Jesus.