I press toward the mark for the prize of the high calling of God in Christ Jesus. I press toward the mark - Κατα σκοπον διωκω· I pursue along the line; this is a reference to the white line that marked the ground in the stadium, from the starting place to the goal, on which the runners were obliged to keep their eye fixed; for they who transgressed or went beyond this line did not run lawfully, and were not crowned, even though they got first to the goal. See the concluding observations on 1 Corinthians 9:27.
What is called σκοπος, mark or scope, here, is called κανων, the line, i.e. the marked line, Philippians 3:16. When it was said to Diogenes, the cynic, "Thou art now an old man, rest from thy labors;" to this he answered: Ει δολιχον εδραμον, προς τῳ τελει εδει με ανειναι, και μη μαλλον επιτειναι; "If I have run long in the race, will it become me to slacken my pace when come near the end; should I not rather stretch forward?" Diog. Laert., lib. vi. cap. 2. sec. 6.
For the prize of the high calling of God - The reward which God from above calls me, by Christ Jesus, to receive. The apostle still keeps in view his crown of martyrdom and his glorious resurrection.