Luke 9:62
Then Jesus declared, “No one who puts his hand to the plow and then looks back is fit for the kingdom of God.”
Philippians 3:12-14
12 Not that I have already obtained all this, or have already been made perfect, but I press on to take hold of that for which Christ Jesus took hold of me. 13 Brothers, I do not consider myself yet to have taken hold of it. But one thing I do: Forgetting what is behind and straining toward what is ahead, 14 I press on toward the goal to win the prize of God’s heavenly calling in Christ Jesus.