1 John 3:15 Whoever hates his brother is a murderer, and you know that no murderer has eternal life abiding in him.
At a glance, the law of Christ is very hard to follow. Hate is something anyone would normally feel in a day to day life. You hate your job, hate this, hate that, hate him or her. Moreover, Why do we have to love an enemy who is not lovable at all?
Luke 6:27-28 “But I say to you who hear: Love your enemies, do good to those who hate you, bless those who curse you, and pray for those who spitefully use you.
Adding the fact that sometimes you did what you do not really intend to do and you hated having done it.
Romans 7:15 For what I am doing, I do not understand. For what I will to do, that I do not practice; but what I hate, that I do.
Romans 7:20 Now if I do what I will not to do, it is no longer I who do it, but sin that dwells in me.
If we let this sin dwell, and hatred remain, curse that day & time it was aroused for it shows no mercy at all.