With the exception of a few articles Eiríksson remained silent in the period 1850–1863. In these years he went through a spiritual crisis. He came to see clearly that the Church's doctrine that God became man in and through Jesus Christ had to be rejected, for it would have the result of leading to the deification of man. German biblical criticism and, in particular, the influence of the Tübingen School caused him to break radically with Johannine and Pauline theology. In "Jøder og Christne" and Christians (1871) Eiríksson drew the ultimate conclusion and explained that Judaism, which in his terminology meant an immediate childlike trust in God, was the only true religion. Jesus had only wanted to purify Judaism, and it is to purified Judaism that we must return.