Fight the good fight of the faith; lay hold of the eternal life to which you were summoned and [for which] you confessed the good confession [of faith] before many witnesses. 1 Timothy 6:12 (AMPC)
There’re many kinds of fights in the world but the only one fight that the believer is called to and commanded to fight is the good fight of the faith.
It’s a fight of not trying to get or attain to but laying hold of what’s already been given us – Eternal Life. We received this Eternal Life by simply confessing the good confession which was confessing Jesus Christ the Son of the Living God.
Fighting the good fight of the Faith is continuing to hold fast the same confession to the end. It is staying fully persuaded of who Christ is and has done, who we are in Him, what we have in Him, what we can do in Him. It is thinking, acting and living in that persuasion in all circumstances, conditions, challenges and crises all the way to the end.