'Fellow' in the Bible

The one who says he is in the light but still hates his fellow Christian is still in the darkness.

The one who loves his fellow Christian resides in the light, and there is no cause for stumbling in him.

But the one who hates his fellow Christian is in the darkness, walks in the darkness, and does not know where he is going, because the darkness has blinded his eyes.

By this the children of God and the children of the devil are revealed: Everyone who does not practice righteousness -- the one who does not love his fellow Christian -- is not of God.

We know that we have crossed over from death to life because we love our fellow Christians. The one who does not love remains in death.

Everyone who hates his fellow Christian is a murderer, and you know that no murderer has eternal life residing in him.

We have come to know love by this: that Jesus laid down his life for us; thus we ought to lay down our lives for our fellow Christians.

But whoever has the world's possessions and sees his fellow Christian in need and shuts off his compassion against him, how can the love of God reside in such a person?

If anyone says "I love God" and yet hates his fellow Christian, he is a liar, because the one who does not love his fellow Christian whom he has seen cannot love God whom he has not seen.

And the commandment we have from him is this: that the one who loves God should love his fellow Christian too.

If anyone sees his fellow Christian committing a sin not resulting in death, he should ask, and God will grant life to the person who commits a sin not resulting in death. There is a sin resulting in death. I do not say that he should ask about that.