'Blood of Abel' in the Bible

that on you may come all the righteous blood being poured out on the earth from the blood of Abel the righteous, unto the blood of Zacharias son of Barachias, whom ye slew between the sanctuary and the altar:

from the blood of Abel unto the blood of Zacharias, who perished between the altar and the house; yes, I say to you, It shall be required from this generation.