How much of our life belongs to God? In ancient Hebrew grain offerings, a portion of one’s daily sacrifice was burnt on the alter of God. The rest sustained God's priests, who accepted the offerings on God's behalf. This certainly informs our own gifts to God: “present your bodies as a living sacrifice…” But there’s deeper meaning here too: just as Old Covenant worshippers' access to God occurred through a priest, so our own access to God occurs through Jesus. He is the true High Priest, whose was sacrificed on the alter of the cross, to bring us into fellowship with God.