Original Verse:
1st John Chapter 4 Verse 6We are of God: he that knoweth God heareth us; he that is not of God heareth not us. Hereby know we the spirit of truth, and the spirit of error.

Reference Verses:
John Chapter 8 Verse 47He that is of God heareth God's words: ye therefore hear them not, because ye are not of God.
1st Corinthians Chapter 14 Verse 37If any man think himself to be a prophet, or spiritual, let him acknowledge that the things that I write unto you are the commandments of the Lord.
1st John Chapter 4 Verse 4Ye are of God, little children, and have overcome them: because greater is he that is in you, than he that is in the world.
2nd Thessalonians Chapter 1 Verse 8In flaming fire taking vengeance on them that know not God, and that obey not the gospel of our Lord Jesus Christ:
1st John Chapter 4 Verse 8He that loveth not knoweth not God; for God is love.
2nd Thessalonians Chapter 2 Verse 9-11 [9] Even him, whose coming is after the working of Satan with all power and signs and lying wonders, [10] And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved. [11] And for this cause God shall send them strong delusion, that they should believe a lie:
Micah Chapter 3 Verse 8But truly I am full of power by the spirit of the LORD, and of judgment, and of might, to declare unto Jacob his transgression, and to Israel his sin.
1st Corinthians Chapter 2 Verse 12-14 [12] Now we have received, not the spirit of the world, but the spirit which is of God; that we might know the things that are freely given to us of God. [13] Which things also we speak, not in the words which man's wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual. [14] But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.
2nd Corinthians Chapter 10 Verse 7Do ye look on things after the outward appearance? If any man trust to himself that he is Christ's, let him of himself think this again, that, as he is Christ's, even so are we Christ's.
1st John Chapter 4 Verse 1Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world.
Romans Chapter 1 Verse 1Paul, a servant of Jesus Christ, called to be an apostle, separated unto the gospel of God,
Jude Chapter 1 Verse 17But, beloved, remember ye the words which were spoken before of the apostles of our Lord Jesus Christ;
John Chapter 8 Verse 19Then said they unto him, Where is thy Father? Jesus answered, Ye neither know me, nor my Father: if ye had known me, ye should have known my Father also.
John Chapter 8 Verse 45And because I tell you the truth, ye believe me not.
John Chapter 10 Verse 27My sheep hear my voice, and I know them, and they follow me:
Isaiah Chapter 29 Verse 10For the LORD hath poured out upon you the spirit of deep sleep, and hath closed your eyes: the prophets and your rulers, the seers hath he covered.
2nd Peter Chapter 3 Verse 2That ye may be mindful of the words which were spoken before by the holy prophets, and of the commandment of us the apostles of the Lord and Saviour:
Luke Chapter 10 Verse 22All things are delivered to me of my Father: and no man knoweth who the Son is, but the Father; and who the Father is, but the Son, and he to whom the Son will reveal him.
John Chapter 13 Verse 20Verily, verily, I say unto you, He that receiveth whomsoever I send receiveth me; and he that receiveth me receiveth him that sent me.
John Chapter 20 Verse 21Then said Jesus to them again, Peace be unto you: as my Father hath sent me, even so send I you.
Isaiah Chapter 8 Verse 20To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.
Hosea Chapter 4 Verse 12My people ask counsel at their stocks, and their staff declareth unto them: for the spirit of whoredoms hath caused them to err, and they have gone a whoring from under their God.
Micah Chapter 2 Verse 11If a man walking in the spirit and falsehood do lie, saying, I will prophesy unto thee of wine and of strong drink; he shall even be the prophet of this people.
Romans Chapter 11 Verse 8(According as it is written, God hath given them the spirit of slumber, eyes that they should not see, and ears that they should not hear;) unto this day.
John Chapter 14 Verse 17Even the Spirit of truth; whom the world cannot receive, because it seeth him not, neither knoweth him: but ye know him; for he dwelleth with you, and shall be in you.
John Chapter 15 Verse 26But when the Comforter is come, whom I will send unto you from the Father, even the Spirit of truth, which proceedeth from the Father, he shall testify of me:
1st John Chapter 1 Verse 3That which we have seen and heard declare we unto you, that ye also may have fellowship with us: and truly our fellowship is with the Father, and with his Son Jesus Christ.
1st John Chapter 3 Verse 10In this the children of God are manifest, and the children of the devil: whosoever doeth not righteousness is not of God, neither he that loveth not his brother.
John Chapter 18 Verse 37Pilate therefore said unto him, Art thou a king then? Jesus answered, Thou sayest that I am a king. To this end was I born, and for this cause came I into the world, that I should bear witness unto the truth. Every one that is of the truth heareth my voice.