John 16:2-3 "They will put you out of the synagogues; yes, the time is coming that whoever kills you will think that he offers God service. And these things they will do to you because they have not known the Father nor Me."
All those Christians and religious leaders, who exclude, persecute and kill Bible believing Christians, do not know God nor His will, words, works, plans, etc. These are religious people who follow the letter (laws) but without the Spirit of truth. Because they do not have truth in them, they are still ensnared in the things of this world. Without the Spirit of truth in them, they could not bear the fruit of the Spirit and therefore they still walk in the flesh just as the heathens.
Gal 5:19-21 Now the works of the flesh are evident, which are: adultery, fornication, uncleanness, lewdness, idolatry, sorcery, hatred, contentions, jealousies, outbursts of wrath, selfish ambitions, dissensions, heresies, envy, murders, drunkenness, revelries, and the like; of which I tell you beforehand, just as I also told you in time past, that those who practice such things will not inherit the kingdom of God.
John 8:42,47 Jesus said to them, "If God were your Father, you would love Me, for I proceeded forth and came from God; nor have I come of Myself, but He sent Me.. He who is of God hears God's words; therefore you do not hear, because you are not of God."
The spiritual leaders during the time of our Lord Jesus were selfish, covetous and carnal and were blinded by power and materialism. They persecuted our Lord. They had forgotten mercy, justice and faith but demanded sacrifices. Similarly, many pastors and leaders today being selfish, covetous and carnal are building their own kingdoms. Blinded by worldly pursuits and successes, they do not know God nor understand His will anymore. This leads them to believe and teach heresies to justify their sinful cravings, covetousness and lusts.
Mat 23:23 "Woe to you, scribes and Pharisees, hypocrites! For you pay tithe of mint and anise and cummin, and have neglected the weightier matters of the law: justice and mercy and faith. These you ought to have done, without leaving the others undone."
John 8:44 "You are of your father the devil, and the desires of your father you want to do. He was a murderer from the beginning, and does not stand in the truth, because there is no truth in him. When he speaks a lie, he speaks from his own resources, for he is a liar and the father of it."
Our Lord condemned those religious leaders who lied and resisted truth as children of the devil. Similarly, all pastors and leaders resisting His words and truth and persecute the brethren who walk in truth, will likely be the devil's servants ministering as false apostles in churches.
1Tim 4:1-2 Now the Spirit expressly says that in latter times some will depart from the faith, giving heed to deceiving spirits and doctrines of demons, speaking lies in hypocrisy, having their own conscience seared with a hot iron.
Brethren, but there were also false prophets among the people, even as there will be false teachers among you, who will secretly bring in destructive heresies, even denying the Lord who bought them, and bring on themselves swift destruction. And many will follow their destructive ways, because of whom the way of truth will be blasphemed. By covetousness they will exploit you with deceptive words; for a long time their judgment has not been idle, and their destruction does not slumber. (2Pet 2:1-3)