Matthew 23:34-35 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.
The killing and persecution of prophets, wise men, scribes and to Jesus the mediator of the new covenant, I thought, is just a thing of the past as devotees and fanatics are already matured. But, this prophesy is yet to come.
Revelation 6:9-11 And when he had opened the fifth seal, I saw under the altar the souls of them that were slain for the word of God, and for the testimony which they held: And they cried with a loud voice, saying, How long, O Lord, holy and true, dost thou not judge and avenge our blood on them that dwell on the earth? And white robes were given unto every one of them; and it was said unto them, that they should rest yet for a little season, until their fellowservants also and their brethren, that should be killed as they [were], should be fulfilled.
The people of God are ready to fight, having with them the breastplate of righteousness, the shield of faith, the helmet of salvation, and the sword of the Spirit, which is the word of God. But, this is not a fight against flesh and blood.
Ephesians 6:12 For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high [places].
This is a fight against whose deeds are like their father Satan.
John 8:44 Ye are of [your] father the devil, and the lusts of your father ye will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it.
For if God is their father, they will definitely love anyone who is telling the truth.
John 15:20 Remember the word that I said unto you, The servant is not greater than his lord. If they have persecuted me, they will also persecute you; if they have kept my saying, they will keep yours also.