In his series on the Lord’s House, Dr Bailey explores the necessity of purity in the priesthood, both in the Old Testament and as a model for the New Testament believers, emphasizing that just as the priesthood of Levi was refined and set apart to uphold God's truth and holiness, so too must we be purified by God's refining fire and fuller's soap, so that we may minister from a burning heart, reflecting God's purity in our lives and in His house.