Who else but the servants of the devil would kill God’s prophets?
Jesus said: Wherefore, behold, I send unto you prophets, and wise men, and scribes: and some of them ye shall kill and crucify; and some of them shall ye scourge in your synagogues, and persecute them from city to city: That upon you may come all the righteous blood shed upon the earth, from the blood of righteous Abel unto the blood of Zacharias son of Barachias, whom ye slew between the temple and the altar. (Matthew 23:34-35 KJV)
This point no one is in disagreement with. The problem is when you superimpose this onto the concept that those who killed the prophets were being pleasing to God. And since the OT prophets acknowledged that they were serving the OT God, how exactly do you reconcile this? Were the prophets in the OT just as deceived as the Jewish people were, serving a God they thought was good who was actually evil?