'Blood of All the Prophets' in the Bible

This is why the Wisdom of God said, 'I will send prophets and apostles to them, and some of them they will kill and some they will persecute'??50 so that this age may be charged with the blood of all the prophets that has been shed since the creation of the world,

That the blood of all the prophets, which was shed from the foundation of the world, may be required of this generation;