John Calvin on John 1:50

50. Jesus answered. He does not reprove Nathanael as if he had been too easy of belief, but rather approving of his faith, promises to him and to others that he will confirm it by stronger arguments. Besides, it was peculiar to one man that he was seen under a fig-tree by Christ, when absent and at a distance from him; but now Christ brings forward a proof which would be common to all, and thus — as if he had broken off from what he originally intended — instead of addressing one man, he turns to address all.