The traditional belief is that after Jesus' execution, many of the apostles prepared to follow the Great Commission by leaving Jerusalem and teaching the gospel throughout the world. In order to make certain that each apostle taught the same message, they jointly composed the Apostles' Creed before their departure.

I believe in God the Father Almighty, Maker of heaven and earth. And in Jesus Christ his only Son our Lord; who was conceived by the Holy Ghost, born of the Virgin Mary, suffered under Pontius Pilate, was crucified, dead, and buried; he descended into hell; the third day he rose again from the dead; he ascended into heaven, and sitteth on the right hand of God the Father Almighty; from thence he shall come to judge the quick and the dead. I believe in the Holy Ghost; the holy catholic Church; the communion of saints; the forgiveness of sins; the resurrection of the body; and the life everlasting. AMEN.