He kept it before his mind even when engaged in the ministry or in the conferences at the theological school of Bonn ; and nearly all his works refer to it or kindred subjects .
The study of the Bible was Kaulen 's aim from the beginning .
Kaulen kept it before Kaulen 's mind even when engaged in the ministry or in the conferences at the theological school of Bonn ; and nearly all his works refer to it or kindred subjects .
The study of the Bible was Kaulen 's aim from the beginning .