'Themselves' in the Bible

Therefore God gave them over in the desires of their hearts to impurity, to dishonor their bodies among themselves.

and likewise the men also abandoned natural relations with women and were inflamed in their passions for one another. Men committed shameless acts with men and received in themselves the due penalty for their error.

For whenever the Gentiles, who do not have the law, do by nature the things required by the law, these who do not have the law are a law to themselves.