But, he was not preaching no standards at all.
In this week's reading he uses the metaphors of running and boxing. He says that athletes train and compete so they can get a wreath as a prize. It's a prize but not one that lasts. Christians, on the other hand, are striving for an imperishable prize.
Being a Christian requires effort and discipline. Preaching the gospel (by word or deed) may turn out to be as strenuous as running a marathon. Do it anyway.