1 Timothy 6:12 in the King James Version
Fight the good fight of faith, lay hold on eternal life, where unto thou art also called, and hast professed a good profession before many witnesses.
Context
11 But you, man of God, flee these things, and follow after righteousness, godliness, faith, love, perseverance, and gentleness.
12 Fight the good fight of faith. Take hold of the eternal life to which you were called, and you confessed the good confession in the sight of many witnesses.
13 I command you before God who gives life to all things, and before Christ Jesus who before Pontius Pilate testified the good confession,