In order to determine what is the “
light” and what is the “
darknesss,” we have to define them according to what the Bible says and not in what we want them to say.
What is the light according to the apostle John?
#1. God is light, and in him is no darkness at all. (1 John 1:5).
So God is the light.
So when we read in 1 John 1:7 that says...“if we walk in the light as He is in the light,” it is referring to how if we walk in God the Father [the light] as He [Christ] is in [the light] God the Father. That is what 1 John 1:7 is saying. For we read in the proceeding context about how John and the others have fellowship with the Father and His Son Jesus Christ.
#1 “That which was from the beginning, which we have heard, which we have seen with our eyes, which we have looked upon, and our hands have handled, of the Word of life;
#2 (For the life was manifested, and we have seen it, and bear witness, and shew unto you
that eternal life, which was with the Father,
and was manifested unto us; )
#3 That 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.” (1 John 1:1-3).
What is the darkness according to the apostle John?
#1. If we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth (1 John 1:6). This is similiar to 1 John 2:4. Please Read it.
#2. He that saith he is in the light, and hateth his brother, is in darkness even until now (1 John 2:9).
#3. And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil. For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved. But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God. (John 3:19-21).
What is darkness according to the rest of the Bible?
#1. but when thine eye is evil, thy body also is full of darkness (Luke 11:34).
#2. And have no fellowship with the unfruitful works of darkness, but rather reprove them (Ephesians 5:11).
Darkness is sin and or hating your brother according to the Bible.
Okay, so taking this all into account, we must understand that if we walk in the light of God the Father, as He (Christ) is in God the Father (Who is the light), we will love our brother (1 John 2:9-11 cf. 1 John 3:10), and the blood of Jesus Christ cleanses us from all sin. Darkness is hating our brother. So if we hate our brother and say we have fellowship with God, we lie and do not the truth. For loving our brother is a commandment (1 John 3:23). This is why 1 John 2:3 basically says we can have an assurance in knowing the Lord if we find we are keeping His commandments. This is why 1 John 2:4 basically says that the person who says they know the Lord and they do not keep His commandments is a liar, and the truth is not in them. What truth is not in them? Jesus. For Jesus is the way,
the truth, and the life (John 14:6).