out of courtesy

out of courtesy (to someone)

in order to be polite to someone; out of consideration for someone. We invited Mary's brother out of courtesy to her. They invited me out of courtesy.
See also: courtesy, of, out
References in classic literature ?
Later it was confirmed and solidified when Wilson proposed that out of courtesy to the strangers the usual topics be put aside and the hour be devoted to conversation upon ordinary subjects and the cultivation of friendly relations and good-fellowship--a proposition which was put to vote and carried.