'Themselves' in the Bible

'I know your works, and your labor and patient endurance, and that you are not able to tolerate evil, and you put to the test those who call themselves apostles and are not, and you found them [to be] false.

'I know your affliction and poverty (but you are rich), and the slander of those {who call themselves Jews} and are not, but [are] a synagogue of Satan.

Behold, I am causing [those] of the synagogue of Satan, the ones who call themselves Jews and are not, but are lying--behold, I will make them {come} and kneel down before your feet and acknowledge that I have loved you.

And the kings of the earth, and the most important people, and the military leaders, and the rich, and the powerful, and every slave and free person hid themselves in the caves and among the rocks of the mountains,

And the seven angels who had the seven trumpets prepared themselves in order to blow them.

And the rest were killed by the sword of the one who is seated on the horse--the [sword] that comes out of his mouth--and all the birds gorged themselves on their flesh.