'Fight' in the Bible

I am setting before you this instruction, Timothy [my] child, in accordance with the prophecies spoken long ago about you, in order that by them you may fight the good fight,

Fight the good fight of the faith; take hold of the eternal life to which you were called, and confessed the good confession in the presence of many witnesses.

I have fought the good fight, I have completed the race, I have kept the faith.

You desire and do not have; you murder and are filled with envy, and are not able to obtain; you fight and quarrel. You do not have because you do not ask.

And the dragon was angry at the woman, and went away to {fight against} the rest of her children, those who keep the commandments of God and who hold to the testimony about Jesus.