'Feed My Sheep' in the Bible

then he ask'd him the second time, Simon son of Jonas do you love me? yes, Lord, said he; you know that I love you. Jesus reply'd, feed my sheep.

Jesus said to him the third time, Simon son of Jonas, do you love me? Peter was grieved at his asking him the third time, "do you love me?" and he said to him, Lord, you know all things; you know that I love you. Jesus said to him, feed my sheep.