An idol is a material object representing a deity to which religious worship is directed. In Christianity, idolatry refers to the worship of gods other than the God of Abraham through the use of idols. It is also controversially and pejoratively used by so-called iconoclasts to describe the Orthodox Christian practice of worshipping the Christian God through the use of icons, small religious portraits which iconoclasts regard as idols, a charge which Orthodox Christians reject. In a similarly controversial sense, it is also used by some Protestants to pejoratively describe various Catholic worship practices such as scapulars and the adoration of statues of the Virgin Mary and saints, which Catholics do not consider idolatry. Idolatry is consistently prohibited in the Hebrew Bible, including as one of the Ten Commandments, for example Exodus 20:3-4) and in the New Testament (for example 1 John 5:21, most significantly in the Apostolic Decree recorded in Acts 15:19-21).