The Holy Apostles Peter and Paul are two of the most influential figures in early Christianity, known as the "chief apostles". Saint Peter was born Simon, he was chosen by Jesus Christ to be the founder of the Church ("you are Peter, and on this rock I will build my church"). Saint Paul, initially a persecutor of Christians (Saul), experienced a spiritual conversion on the road to Damascus and became the most ardent spreader of the faith among the pagans. Their depiction together, supporting a model of a church, symbolizes their joint role as pillars and supporters of the Universal Church.Saint Peter is usually depicted with graying hair and a beard, holding the keys to the Kingdom of Heaven or a scroll.Saint Paul, is traditionally depicted with a high forehead, dark hair and a beard, holding a closed book (the Gospel) or a sword, a symbol of his martyrdom.