fighting the good fight

Verb

fight the good fight (third-person singular simple present fights the good fight, present participle fighting the good fight, simple past and past participle fought the good fight)

1. To battle or try to achieve something for a noble cause.
   • "My brethren," he said, "since God has not given our people victory in the combat, it must be because he requires of us, his spiritual soldiers, to fight the good fight of martyrdom, [...]"1820 March, [Walter Scott], chapter XII, in The Monastery. A Romance. […], volume III, Edinburgh: […] Longman, Hurst, Rees, Orme, and Brown, […]; and for Archibald Constable and Co., and John...