His name Jens, a Scandinavian origin, is a Danish form of JOHN which is derived from Iohannes, the Latin form of the Greek name Ιωαννης (Ioannes), itself derived from the Hebrew name יוֹחָנָן (Yochanan) meaning "Yahweh is gracious".
This name owes its popularity to two New Testament characters, both highly revered saints. The first was John the Baptist, a Jewish ascetic who baptized at the Jordan Riverand was considered the forerunner of Jesus Christ. The second was the apostle John, who was long-lived apostle and loved by Christ. He also supposedly the author of the fourth Gospel and Revelation.