Heritage <1,,2820, kleroo>
primarily, "to cast lots" or "to choose by lot," then, "to assign a portion," is used in the Passive Voice in Eph 1:11, "we were made a heritage," RV (AV, "we have obtained an inheritance"). The RV is in agreement with such OT passages as Deu 4:20, "a people of inheritance;" Deu 9:29, Deu 32:9, Psa 16:6. The meaning "were chosen by lot," as in the Vulgate, and in 1Sa 14:41, indicating the freedom of election without human will (so Chrysostom and Augustine), is not suited to this passage.
