The shepherding role of the
apostle Peter as episcopos was
related by the apostle John.
John 21:15-17
When they had finished breakfast, Jesus said to Simon
Peter, "Simon, son of John, do you love me more
than
these?" He said to him, "Yes, Lord, you know
that I love
you." He said to him, "Feed my lambs."
He then said to
him a second time, "Simon, son of John, do you
love
me?" He said to him, "Yes, Lord, you know
that I love
you." He said to him, "Tend my sheep."
He said to him
the third time, "Simon, son of John, do you love
me?"
Peter was distressed that he had said to him a third
time, "Do you love me?" and he said to him,
"Lord, you
know everything; you know that I love you."
(Jesus)
said to him, "Feed my sheep."