Mattityahu 14:29-31

And Rebbe, Melech HaMoshiach said, Boh! (Come!) And having gone down from the sirah (boat), Kefa walked al pnei hamayim (on the surface of the waters) and came toward him. And seeing the strong wind, Kefa was afraid, and having begun to sink, Kefa cried out, saying, Azreini! Adoni, hoshieini! (Help! L-rd, save me!) And immediately Rebbe, Melech HaMoshiach, having stretched out (his) hand, took hold of Kefa and says to him, One of little emunah, why did you doubt?