'Slain' in the Bible

Saying, The Son of man must suffer many things, and be rejected of the elders and chief priests and scribes, and be slain, and be raised the third day.

from the blood of Abel to the blood of Zechariah [the priest], who was murdered between the altar and the house of God. Yes, I tell you, charges will be brought against this generation.’

Then came the preparation day of Unleavened Bread on which the Passover lamb had to be sacrificed.