For he says to Moses (twi Mwusei gar legei). He has an Old Testament illustration of God's election in the case of Pharaoh ( Exodus 33:19 ). On whom I have mercy (on an elew). Indefinite relative with an and the present active subjunctive of eleaw, late verb only here and Jude 1:23 in N.T. "On whomsoever I have mercy." The same construction in on an oikteirw, "on whomsoever I have compassion."