'Themselves' in the Bible

So when he came to Galilee, the Galileans welcomed him because they had seen all the things he had done in Jerusalem at the feast (for they themselves had gone to the feast).

Now the Jewish feast of Passover was near, and many people went up to Jerusalem from the rural areas before the Passover to cleanse themselves ritually.

Believe me that I am in the Father, and the Father is in me, but if you do not believe me, believe because of the miraculous deeds themselves.

But now I am coming to you, and I am saying these things in the world, so they may experience my joy completed in themselves.

(Now the slaves and the guards were standing around a charcoal fire they had made, warming themselves because it was cold. Peter also was standing with them, warming himself.)