after the battle at kappel am albis, oecolampadius recommended him to his friend martin bucer who accepted him as his assistant (diaconus) in strasbourg at st. thomas. when bucer was on his frequent travels, hubert stepped in for him. hubert worked for bucer dutifully for 18 years. it was part of his job to make bucer's ideas and concepts readable, because bucer's handwriting was difficult to read. when bucer left his post in 1549 and fled to england, johann marbach introduced lutheranism. hubert did not agree, he was expelled from the "kirchenkonvent" in 1562 and was dismissed from st. thomas in 1563. after that he worked as a free-lance preacher.