In other times the symbol used was the icthus and the mogen david It is merely the symbol we use at this time to signify fellow believers.
The depiction of Christ in pictorial form was controversial in the early church. The depiction of Jesus in art took several centuries to reach a conventional standardized form for his physical appearance, which has subsequently remained largely stable since that time. Most images of Jesus have in common a number of traits which are now almost universally associated with Jesus, although variants are seen.
The image of a fully bearded Jesus with long hair did not become established until the 6th century in Eastern Christianity, and much later in the West. Earlier images were much more varied. Images of Jesus tend to show ethnic characteristics similar to those of the culture in which the image has been created. Beliefs that certain images are historically authentic, or have acquired an authoritative status from Church tradition, remain powerful among some of the faithful, in Eastern Orthodoxy, Anglicanism, and Roman Catholicism. The Shroud of Turin is now the best-known example, though the Image of Edessa and the Veil of Veronica were better known in medieval times]citation needed[. Sacramentals
Mogen David is a company based in Westfield, New York that makes wines, including the fortified wine MD 20/20. It is owned by The Wine Group.
Mogen David is the Yiddish pronunciation of the Hebrew Magen David, which literally means "shield of David", but is used metaphorically to refer to the six-pointed Star of David. Ichthys
Christian symbolism is the use of symbols, including archetypes, acts, artwork or events, by Christianity. It invests objects or actions with an inner meaning expressing Christian ideas.
The symbolism of the early Church was characterized by being understood by initiates only, while after the legalization of Christianity in the 4th-century more recognizable symbols entered in use. Christianity has borrowed from the common stock of significant symbols known to most periods and to all regions of the world. Christianity
Iconography is the branch of art history which studies the identification, description, and the interpretation of the content of images: the subjects depicted, the particular compositions and details used to do so, and other elements that are distinct from artistic style. The word iconography comes from the Greek εἰκών ("image") and γράφειν ("to write"). A secondary meaning (based on a non-standard translation of the Greek and Russian equivalent terms) is the production of religious images, called icons, in the Byzantine and Orthodox Christian tradition; that is covered at Icon. In art history, "an iconography" may also mean a particular depiction of a subject in terms of the content of the image, such as the number of figures used, their placing and gestures. The term is also used in many academic fields other than art history, for example semiotics and media studies, and in general usage, for the content of images, the typical depiction in images of a subject, and related senses. Sometimes distinctions have been made between Iconology and Iconography, although the definitions, and so the distinction made, varies. When referring to movies, genres are immediately recognizable through their iconography, motifs that become associated with a specific genre through repetition.