'Fuller' in the Bible

And his raiment became shining, exceeding white as snow; so as no fuller on earth can white them.

And he was preaching in the Synagogue without fear. But Priscilla and Aquila, hearing his words, took him in, and gave him fuller teaching about the way of God.

so that you will walk in a manner worthy of the Lord [displaying admirable character, moral courage, and personal integrity], to [fully] please Him in all things, bearing fruit in every good work and steadily growing in the knowledge of God [with deeper faith, clearer insight and fervent love for His precepts];

and have put on the new [spiritual] self who is being continually renewed in true knowledge in the image of Him who created the new self—