When his father died in 1566, Friis took over the position as vicar and was the same year appointed as provost of the Deanery of Lista.
Sør-Audnedal parish was sizable covering the Lindesnes peninsula and the lower part of Audnedal, west of Mandal including churches in Valle, Vigmostad and Spangereid.
[3] His early writings included descriptions of Iceland (1580), Faroe Islands (1592), Greenland (1596) and Norwegian natural history (1599).
[4][5][6] Historian Frederik Winkel Horn said of him: "He rendered great services to the history of Norway by his translation of the old sagas of the kings.
This also applies to his other writings, as for instance his Norriges og omliggende Oers Beskrivelse—a description of Norway and adjacent islands—in which is found historical material of value.