Circumcision in the Old Testament symbolised baptism as we have previously explained. The circumcised was considered a member of God's people according to the covenant between God and Abraham (Gen.l7: 11). It is known that circumcision was to be done on the eighth day after birth, according to God's command (Gen.l7: 12). What understanding did the eight-day old baby boy have regarding the covenant between God and Abraham? To what extent was he aware of this membership in God's people? Undoubtedly, he had nothing of the sort, but he was circumcised on his parents' belief in such a covenant; he became a member of God's people and was entitled to the promises which God endowed upon our Father Abraham. The baby attained all these through the belief of his parents.