'Themselves' in the Bible

"I know what you've been doing, your toil, and your endurance. I also know that you cannot tolerate evil people. You have tested those who call themselves apostles, but are not, and have found them to be false.

Each of them was given a white robe. They were told to rest a little longer until the number of their fellow servants and their brothers was completed, who would be killed as they themselves had been.

Then the kings of the earth, the important people, the generals, the rich, the powerful, and all the slaves and free people concealed themselves in caves and among the rocks in the mountains.

They have not defiled themselves with women, for they are virgins, and they follow the lamb wherever he goes. They have been redeemed from among humanity as the first fruits for God and the lamb.

The rest were killed by the sword that belonged to the rider on the horse and that came from his mouth, and all the birds gorged themselves with their flesh.

But people who are cowardly, unfaithful, detestable, murderers, sexually immoral, sorcerers, idolaters, and all liars will find themselves in the lake that burns with fire and sulfur. This is the second death."