"This He spoke, signifying by what death he would glorify God and when He had spoken this, He said to him, 'Follow Me.'"
For one who follows the Lord, who seeks His Kingdom, the finish line is what matters. We want to end well. We want to know that we've not wasted our lives. The trial ahead is not as troubling as a failure on our part to obey God.
Jesus called this soldier of the Cross to attention, to reaffirm the call. Peter had just heard of his own martyrdom. Jesus gave His life to Peter. Peter would follow the Lord and give his life for the Gospel. Peter would be bound, as His Lord was, and would yield his life to glorify His Heavenly Father.
After Peter's denial of Christ, a resurrected Jesus had to remove Peter's buried doubts and self-recriminations. In a mere few years, Peter – the rock – would fulfill His call. He summoned courage to be the tip of the spear, teaching doctrine and establishing the mission of the Church.
The idea that Peter would be arrested as an old man should not be the focus. Peter was told by Christ that He would be strong enough to stand for Jesus unlike before. Peter understood that his denial of Jesus was not only forgiven, but the breach sealed. Peter would never again deny the Lord!
God knows how to firm up the backbone of your faith. The Lord wants you to know He believes in what He had deposited in you. You can and will go the distance and cross the finish line! To follow your destiny in Christ is to end strong.
John 21:17-19 NKJV "Simon, son of Jonah, do you love Me?" Peter was grieved because He said to 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. (18) Most assuredly, I say to you, when you were younger, you girded yourself and walked where you wished; but when you are old, you will stretch out your hands, and another will gird you and carry you where you do not wish." (19) This He spoke, signifying by what death he would glorify God. And when He had spoken this, He said to him, "Follow Me."