He was trained at the Remonstrant seminary of Haarlem and first served in Emden 1733-1736 before moving to Amsterdam . He was trained at the Remonstrant Seminary in Haarlem and first served in Emden from 1733-1736 before moving to Amsterdam . He was trained at the Remonstrant Seminary of Amsterdam and served first in Emden 1733-1736 before moving to Haarlem .