Witte was born on 7 December 1666 in Daugavgrīva, Riga, in what was the Swedish Empire and is present-day Latvia.

He then studied at the University of Wittenberg, and then in September 1691, was appointed an assistant professor in the Faculty of Philosophy.

Nonetheless, Witte managed to become the German-speaking chaplain of Ulrika Eleonora.

Archbishop Mathias Steuchius consecrate him bishop in Uppsala Cathedral on 8 October 1721.

As bishop, he frequently inspected the congregations and closely monitored the school system and examined priests and schoolteachers to make sure they were performing their teaching duties in a proper manner.