In 1783, he became a student at Elsinore school in Helsingør and in 1788 he studied law.
He served as a representative at the Norwegian Constitutional Assembly. In 1795, he became merchant and whaling inspector in Greenland from a service location in Nuuk. He served as District Governor in Hedmark from 1804-1816.
In September 1816, he was appointed Assessor in Christiania (now Oslo) Court and was Counselor from 1823.
Bendek was married to Magdalene Cathrine Pihl (1787-1843), daughter of Abraham Pihl. The couple made their home at Kjonerud, a farm in Stange where they raised their family.
He represented Hedemarken amt (now Hedmark) at the Norwegian Constituent Assembly at Eidsvoll in 1814. At the Assembly, he supported the position of the independence party (Selvstendighetspartiet).
Holme Jørn (2014) De kom fra alle kanter - Eidsvollsmennene og deres hus (Oslo: Cappelen Damm).