Was Peter the oldest of Jesus' twelve disciples?
According to the teaching, Peter was probably the eldest of the twelve disciples. He was likely in his forties, while the others were in their early thirties. This is presented as an opinion based on reasoning, not a definitive scriptural statement.
Les explains that he thinks Peter was probably the eldest of the twelve, estimating he was in his forties while the rest were in their early thirties. Les says he has several reasons for thinking this. He notes Peter's lifestyle was fishing and that Peter loved the Sea of Galilee. In John 21, after seeing the resurrected Lord, Peter says, "I go fishing," showing he was returning to his old ways. This chapter is used as an introduction to Acts.