The blessing bestowed upon his grandchildren by Jacob was as follows: "O that it be the will of God that ye walk in the ways of the Lord like unto my fathers Abraham and Isaac, and may the angel that hath redeemed me from all evil give his aid unto Joshua and Gideon, and reveal himself unto them. May your names be named on Israel, and like unto fishes may you grow into a multitude in the midst of the earth, and as fishes are protected by the water, so may you be protected by the merits of Joseph."
Jacob Blessed His Grandsons to Walk Like Abraham and Isaac
Legends of the Jews 1:383