'Boastful' in the Bible

In writing this much, brethren, with special reference to Apollos and myself, I have done so for your sakes, in order to teach you by our example what those words mean, which say, "Nothing beyond what is written!" --so that you may cease to take sides in boastful rivalry, for one teacher against another.

Love is patient and kind. Love knows neither envy nor jealousy. Love is not forward and self-assertive, nor boastful and conceited.