Jesus showed Andrew his home. Staying means living. Andrew calls him rabbi teacher. How did one become a rabbi in those days? who could become one? when aged 12 Jesus stopped in the temple to discuss with the elderly Pharisees and hooked them with his Knowledge, where had he learned? at home from his faithful parents. Was going to ask whether Joseph was a rabbi. Then it dawned on me that he was not. A well known fact that he was a carpenter. Which makes us think of Noa building the ark and the previous Ark that the Jews were asked to build in ther pilgrimage to the Promised Land. That temple scene strikes like one of those vocational calls in life.