'Function' in the Bible

For this reason God gave them over to degrading passions; for their women exchanged the natural function for that which is unnatural,

and in the same way also the men abandoned the natural function of the woman and burned in their desire toward one another, men with men committing indecent acts and receiving in their own persons the due penalty of their error.

For just as we have many members in one body and all the members do not have the same function,