in 1835 compared the Synoptic Gospels in pairs and noted that, while Matthew frequently agreed with Mark against Luke in the order of passages and Luke agreed frequently with Mark against Matthew, Matthew and Luke rarely agreed with each other against Mark. Lachmann inferred from this that Mark best preserved a relatively fixed order of episodes in Jesus's ministry.

In 1838, two theologians, Christian Gottlob Wilke and Christian Hermann Weisse,