Love is a must
"For this is the declaration which you have heard from the beginning, that you should love one another.
Not as Cain, who was of the wicked one and killed his brother. And
wherefore did he kill him? Because his own works were wicked: and his
brother's just.
Wonder not, brethren, if the world hate you.
We know that we have passed from death to life, because we love the brethren. He that loveth not abideth in death.
Whosoever hateth his brother is a murderer. And you know that no murderer hath eternal life abiding in himself. “
1 John 3.11-15