Genesis 4:8-10 Gen. 4:8-10
8 And Cain talked with Abel his brother: and it came to pass, when they were in the field, that Cain rose up against Abel his brother, and slew him. 9 And the LORD said unto Cain, Where is Abel thy brother? And he said, I know not: Am I my brother's keeper? 10 And he said, What hast thou done? the voice of thy brother's blood crieth unto me from the ground.
Luke 11:51 Lk. 11:51
From the blood of Abel unto the blood of Zacharias, which perished between the altar and the temple: verily I say unto you, It shall be required of this generation.
(Relation)