Most of us have heard at least one sermon on the Greek word "ekklesia." We know that it has to do with being "called out," and that it means the assembly of those called to be in Christ. We use that word to describe the Church.
I like to look at this term, "called out" from a different perspective, also.
Other fighting words are found in, 1 Tim. 6:12, in which we read:
Fight the good fight of the faith. Take hold of the eternal life to which you were called when you made your good confession in the presence of many witnesses.
Paul explains this concept of fighting for the faith further when he writes to his young protege Timothy, in 2 Tim. 4:7:
I have fought the good fight, I have finished the race, I have kept the faith.
One final, and obvious, example will be offered here. It is found in Jude 3. Here we find this challenge:
Dear friends, although I was very eager to write to you about the salvation we share, I felt I had to write and urge you to contend for the faith that was once for all entrusted to the saints.
In the movie “On the Waterfront,” Marlon Brando uttered the famous line: “I coulda been a contender.” That means he could have fought for the title. We don't have to fight for the title. It is already won by the blood of Jesus, which purchased the Church. We still need, however, to be contenders.