(reversion to what precedes:) Jacob was given a hint and he did not take it, it being written (Genesis 28:15) "And, behold, I am with you, and I shall keep you wherever you go," yet he was frightened and he feared, as it is written (Ibid. 32:8) "And Jacob feared greatly and he was distressed." A man whom the Holy One Blessed be He had assured feared and was frightened? (How can that be?) Our father Jacob thought: Woe unto me; perhaps my sins will cause (the abrogation of the assurance.)