Bible Verses About Murder: Should warn others against

Do not take away his life, nor shed his blood: but cast him into this pit, that is in the wilderness, and keep your hands harmless: now he said this, being desirous to deliver him out of their hands and to restore him to his father.

But know ye, and understand, that if you put me to death, you will shed innocent blood against your own selves, and against this city, and the inhabitants thereof. For in truth the Lord sent me to you, to speak all these words in your hearing.