[1][2] The crucifix emphasizes Jesus' sacrifice, including his death by crucifixion, which Christians believe brought about the redemption of mankind.
[6][7] Roman Catholics and Lutherans see the crucifix as the perfect fulfillment of that inferred by the serpent created by Moses in Numbers 21:8—9,[8] called the Nehushtan.
Taken together, these readings explain the striking front and center position of a large crucifix normally fixed above or behind a Catholic altar.
Western crucifixes usually have a three-dimensional corpus, but in Eastern Orthodoxy Jesus' body is normally painted on the cross, or in low relief.
[11] The standard, four-pointed Latin crucifix (used in the Catholic and Lutheran traditions) consists of an upright post or stipes and a single crosspiece to which the sufferer's arms were nailed.
The corpus of Eastern crucifixes is normally a two-dimensional or low relief icon that shows Jesus as already dead, his face peaceful and somber.
The crown of thorns is also generally absent in Eastern crucifixes, since the emphasis is not on Christ's suffering, but on his triumph over sin and death.
It was in Italy that the emphasis was put on Jesus' suffering and realistic details, during a process of general humanization of Christ favored by the Franciscan order.
Another, symbolic, depiction shows a triumphant Christ (Latin: Christus triumphans), clothed in robes, rather than stripped as for his execution, with arms raised, appearing to rise up from the cross, sometimes accompanied by "rays of light", or an aureole encircling his body.
[14] In the early Church, many Christians hung a cross on the eastern wall of their house in order to indicate the eastward direction of prayer.
It is desirable that such a cross should remain near the altar even outside of liturgical celebrations, so as to call to mind for the faithful the saving Passion of the Lord.
[22] Eastern Christian liturgical processions called crucessions [citation needed] include a cross or crucifix at their head.
Modern anti-Christians have used an inverted (upside-down) crucifix when showing disdain for Jesus Christ or the Catholic Church which believes in his divinity.
[25] Seeing a painting of a crucifix, Zinzendorf fell on his knees vowing to glorify Jesus after contemplating on the wounds of Christ and an inscription that stated "This is what I have done for you, what will you do for me?".
[31][non-primary source needed] In England (where Anglican Christianity is the dominant faith), the Royal Chapels of Elizabeth I were most unusual among local churches in retaining crucifixes, following the Queen's conservative tastes.
[32] In 2005, a mother accused her daughter's school in Derby, England, of discriminating against Christians after the teenager was suspended for refusing to take off a crucifix necklace.