The phrase appears most prominently in two letters from the Apostle Paul to his protégé, Timothy:
: "I have fought the good fight, I have finished my course, I have kept the faith." Why It Is Considered a "Good Piece" of Advice 12 : Thus They Fought
: "Fight the good fight of faith, lay hold on eternal life, whereunto thou art also called, and hast professed a good profession before many witnesses." The phrase appears most prominently in two letters
What Does Paul Mean by “Fighting the Good Fight”? | Tabletalk I have finished my course
Theological resources and commentaries, such as those found on Bible Hub and The Gospel Coalition , highlight several reasons why this is a foundational "piece" of Christian living: