SB 10.13.13
tan drstva bhaya-santrastan
uce krsno ’sya bhi-bhayam
mitrany asan ma viramate-
hanesye vatsakan aham
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
When Krsna saw that His friends the cowherd boys were frightened, He, the fierce controller even of fear itself, said, just to mitigate their fear, “My dear friends, do not stop eating. I shall bring your calves back to this spot by personally going after them Myself.”
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
In the presence of Krsna’s friendship, a devotee cannot have any fear. Krsna is the supreme controller, the controller of even death, which is supposed to be the ultimate fear in this material world. Bhayam dvitiyabhinivesatah syat (Bhag. 11.2.37). This fear arises because of lack of Krsna consciousness; otherwise there cannot be any fear. For one who has taken shelter of the lotus feet of Krsna, this material world of fear becomes hardly dangerous at all.
bhavambudhir vatsa-padam param padam
padam padam yad vipadam na tesam
Bhavambudhih, the material ocean of fear, becomes very easy to cross by the mercy of the supreme controller. This material world, in which there is fear and danger at every step (padam padam yad vipadam), is not meant for those who have taken shelter at Krsna’s lotus feet. Such persons are delivered from this fearful world.
samasrita ye pada-pallava-plavam
mahat-padam punya-yaso murareh
bhavambudhir vatsa-padam param padam
padam padam yad vipadam na tesam
(Bhag. 10.14.58)
Everyone, therefore, should take shelter of the Supreme Person, who is the source of fearlessness, and thus be secure.