And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment.(1 John 3:23)

And he that keepeth his commandments dwelleth in him, and he in him. And hereby we know that he abideth in us, by the Spirit which he hath given us.(1 John 3:24)

Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world.(1 John 4:1)

Hereby know ye the Spirit of God: Every spirit that confesseth that Jesus Christ is come in the flesh is of God:

And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, whereof ye have heard that it should come; and even now already is it in the world.(1 John 4:3)

Ye are of God, little children, and have overcome them: because greater is he that is in you, than he that is in the world.(1 John 4:4)

They are of the world: therefore speak they of the world, and the world heareth them.(1 John 4:5)

Other publications related to "1 John 4:2":

Greater is He who is in you
Understanding the context of the verse Greater is He who is in you than he who is in the world (1 John 4:4) and how it relates to spiritual warfare and the antichrist system.

Three tests to evaluate if we truly lead a Christian life
The Book of First John gives three tests to evaluate if one is in the real faith: believing in the real Jesus, obeying Gods commands, and loving others. This article discusses these tests and warns against idolatry in the Christian life.

Imitating Christ - for the love of the world
Article discussing the Christian mission to imitate Christ and reject opposing forces while loving the world.

1 John 4:2 - Cross Reference

And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth. (John 1:14)

Wherefore I give you to understand, that no man speaking by the Spirit of God calleth Jesus accursed: and that no man can say that Jesus is the Lord, but by the Holy Ghost. (1 Corinthians 12:3)

And without controversy great is the mystery of godliness: God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory. (1 Timothy 3:16)

Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come. (John 16:13)

Whosoever denieth the Son, the same hath not the Father: he that acknowledgeth the Son hath the Father also. (1 John 2:23)

Whosoever believeth that Jesus is the Christ is born of God: and every one that loveth him that begat loveth him also that is begotten of him. (1 John 5:1)