The passage that is up is I John 3:11-24. Not a passage for the faint of heart.
11This is the message you heard from the beginning: We should love one another. 12Do not be like Cain, who belonged to the evil one and murdered his brother. And why did he murder him? Because his own actions were evil and his brother’s were righteous. 13Do not be surprised, my brothers, if the world hates you. 14We know that we have passed from death to life, because we love our brothers. Anyone who does not love remains in death. 15Anyone who hates his brother is a murderer, and you know that no murderer has eternal life in him.
16This is how we know what love is: Jesus Christ laid down his life for us. And we ought to lay down our lives for our brothers. 17If anyone has material possessions and sees his brother in need but has no pity on him, how can the love of God be in him? 18Dear children, let us not love with words or tongue but with actions and in truth. 19This then is how we know that we belong to the truth, and how we set our hearts at rest in his presence 20whenever our hearts condemn us. For God is greater than our hearts, and he knows everything.
21Dear friends, if our hearts do not condemn us, we have confidence before God 22and receive from him anything we ask, because we obey his commands and do what pleases him. 23And this is his command: to believe in the name of his Son, Jesus Christ, and to love one another as he commanded us. 24Those who obey his commands live in him, and he in them. And this is how we know that he lives in us: We know it by the Spirit he gave us. [NIV]
Going to the Greek doesn’t help. John is in a stream of consciousness mode and he’s speaking in the kind of extreme terms that Jesus did when He said things like this:
“You have heard that it was said to the people long ago, ‘Do not murder, and anyone who murders will be subject to judgment.’ But I tell you that anyone who is angry with his brother will be subject to judgment. Again, anyone who says to his brother, ‘Raca,’ is answerable to the Sanhedrin. But anyone who says, ‘You fool!’ will be in danger of the fire of hell.” (Mat. 5:20-22 [NIV])
For our soul’s sake we must learn to understand the Scriptures. We must escape the slavery of words and give loyal adherence to meanings instead. Words should express ideas, not originate them. We say that God is love; we say that God is light; we say that Christ is truth; and we mean the words to be understood in much the same way that words are understood when we say of a man, “He is kindness itself.” By so saying we are not stating that kindness and the man are identical, and no one understands our words in that sense. (p. 98, emphasis mine)