2 Timothy 2:5

And if a man also strive for masteries, yet is he not crowned, except he strive lawfully.
— 2 Timothy 2:5, King James Version

In other translations

World English Bible (WEB)

If also a man competes in the games, he is not crowned, unless he has competed by the rules.

American Standard Version (ASV)

And if also a man contend in the games, he is not crowned, except he have contended lawfully.

Young's Literal Translation (YLT)

and if also any one may strive, he is not crowned, except he may strive lawfully;