The precise age of Simon Peter at the commencement of his discipleship with Jesus is not explicitly stated within the biblical texts. The Gospels provide accounts of Jesus calling Peter, along with his brother Andrew, to leave their fishing trade and follow him. However, these narratives do not furnish specific chronological details regarding Peter’s age at this pivotal moment.
Understanding the likely age range of Peter during this period necessitates considering typical life stages in first-century Galilee. Men were generally expected to be married and established in a trade by their late teens or early twenties. Given that Peter was married and working as a fisherman, it is plausible to estimate that he was likely in his twenties or thirties when Jesus called him. Determining a more precise age remains speculative due to the absence of definitive historical records.