Proverbs 6:16-19
“These six things doth the Lord hate: yea, seven are an abomination unto him: A proud look, a lying tongue, and hands that shed innocent blood, An heart that deviseth wicked imaginations, feet that be swift in running to mischief, A false witness that speaketh lies, and he that soweth discord among brethren.”

God knew the condition that the world would fall into before the fall. He knew exactly what Satan was capable of creating, because He is the one who created him. Yet one could wonder how much it grieved the Lord to allow Cain to raise the rock above Abel’s head and swing it down in a fatal blow. What was it like moments after Abel breathed his last and Cain stood there, heart beating fast in the silence, while Abel's blood spilled onto the ground? This is something that God hates, the hands of those that shed innocent blood.

God hates physical evil like this, but He also hates spiritual wickedness. In John’s first letter, he does not isolate murder to a man physically killing another, but he expands the definition to that of one man hating another man, I John 3:15, “Whosoever hateth his brother is a murderer: and ye know that no murderer hath eternal life abiding in him.” Cain detested, despised, and hated his brother, and it led to horrible evil. God hates not only physical murder, but spiritual murder. Cain was a religious person, but in his heart there was hatred, and it led to murder.

God alone is the one that gives life, and it should be only He who decides when to take it back. Someone who willfully murders is someone who spits the life of God right back into His face. Human life is a precious thing to God, so we should treat it the same. The Scripture is clear, even hatred toward another human being is murder, the shedding of innocent blood. No murderer will ever enter into the kingdom of God.

God hates hands that shed innocent blood, and so must we detest it.  

56-1230 - “Joseph Meeting His Brethren”
And all these other things, Joseph, David, all the prophets, was just a reflection. Amen. Reflecting, from the true Seed from the garden of Eden, till the time that He shall come the second time, in Glory, to receive His people and His Church. There it is, beautiful to look upon. Joseph, his brothers were arrogant with him. “They hated him, without a cause,” because he was supernaturally inspired. You get it? Cain hated Abel, without a cause, because of being supernatural inspired. Moab hated Israel, without a cause, because they had Divine healing, signs, wonders, and miracles. Hated him, without a cause, and wouldn’t let him pass through…

Read the Bible in 1 year:
2 Chronicles 21-24