'Themselves' in the Bible

For the priests and the Levites had purified themselves as one man: they were all pure; and they killed the passover for all the children of the captivity, and for their brethren the priests, and for themselves.

And the children of Israel that were come back out of captivity, and all such as had separated themselves to them from the filthiness of the nations of the land, to seek Jehovah the God of Israel, did eat;

Now when these things were completed, the princes came to me, saying, The people of Israel, and the priests and the Levites, have not separated themselves from the peoples of the lands, according to their abominations, even of the Canaanites, the Hittites, the Perizzites, the Jebusites, the Ammonites, the Moabites, the Egyptians, and the Amorites;

for they have taken of their daughters for themselves and for their sons, and have mingled the holy seed with the peoples of the lands; and the hand of the princes and rulers has been chief in this unfaithfulness.

And they made proclamation in Judah and Jerusalem to all the children of the captivity, that they should gather themselves together unto Jerusalem;