And so I run, but not with uncertainty. And so I fight, but not by flailing in the air
Other versions
King James Version
I therefore so run, not as uncertainly; so fight I, not as one that beateth the air:English Standard Version
So I do not run aimlessly; I do not box as one beating the air.New International Version
Therefore I do not run like a man running aimlessly; I do not fight like a man beating the air.