'Innocent Blood' in the Bible

if ye oppress not the stranger, the fatherless, and the widow, and shed no innocent blood in this place, neither walk after other gods to your hurt;

Thus saith Jehovah: Execute judgment and righteousness, and deliver the spoiled out of the hand of the oppressor; and do no wrong, do no violence to the stranger, the fatherless, or the widow, and shed not innocent blood in this place.

only know for certain that if ye put me to death, ye shall surely bring innocent blood upon yourselves, and upon this city, and upon the inhabitants thereof; for of a truth Jehovah hath sent me unto you to speak all these words in your ears.