CAPTION:
The feast day of Saints Peter and Paul, who are both apostles and key figures in the early Christian Church, is celebrated every year on June 29. This day is considered a holy day of obligation in many parts of the Catholic Church, meaning that Catholics are obligated to attend Mass.
It's a day to remember the lives and works of these two significant saints: Peter, to whom Jesus said, "Upon this rock I will build my church," and Paul, who was a zealous persecutor of Christians before his conversion and became one of Christianity's most influential thinkers and missionaries.
