“This spake hee, signifying by what death he should glorifie God. And when he had spoken this, he sayth vnto him, Follow me.”
1611 King James Version (KJV)
21:19 By what death he should glorify God - It is not only by acting, but chiefly by suffering, that the saints glorify God. Follow me - Showing hereby likewise what death he should die.
Joh 21:19 By what death he should glorify God. These two verses can only be understood as declaring that Peter should die the death of a martyr. John wrote after Peter's death, and may be understood as affirming that he did thus "glorify God". The universal testimony of the ancient Church is that he did thus die. It is asserted that Peter was crucified, a fact that is probable, as he was not a Roman citizen. Follow me. He had once forsaken Christ through fear of death. Now, with a prospect of violent death before him, he is bidden to resume the Master's work and to follow him. He did this, from this time, faithfully.