The first recorded use of the phrase fight the good fight is in the biblical book of Timothy. This is part of a complete episode.
Transcript of “Fight the Good Fight”
Another phrase you might be surprised to learn comes directly from the Bible is fight the good fight.
Fight the good fight?
Yeah.
And where is that?
It’s in 1 Timothy 6.12 and the longer phrase is fight the good fight of faith.
Oh, nice.
How about that?
Fight the good fight.
It’s just everywhere.
The Bible has just left these footprints throughout the language.
Yes.

