Since many have undertaken to set in order a narrative concerning those matters which have been fulfilled among us,

 Elizabeth, to the neighbours' surprise, said that her son must be called John and Zacharias indicated that that was also his desire. John is a shorter form of the name Jehohanan, which means "Jehovah's gift" or "God is gracious." It was the name which God had ordered to be given to the child and it described the parents' gratitude for an unexpected joy. 