I am a liar.
Whoever claims to love God yet hates a brother or sister is a liar. For whoever does not love their brother and sister, whom they have seen, cannot love God, whom they have not seen. (1 John 4:20)
I am a murderer.
Anyone who hates a brother or sister is a murderer, and you know that no murderer has eternal life residing in him. (1 John 3:15)
I know not love... or how to love.
Love is patient and kind; love does not envy or boast; it is not arrogant or rude. It does not insist on its own way; it is not irritable or resentful; it does not rejoice at wrongdoing, but rejoices with the truth. Love bears all things, believes all things, hopes all things, endures all things. (1 Corinthians 13:4-7)