Mattityahu 2:12-13

and becoming warned in a dream, themselves not to return to Herod, are they went away by an other way to their own land into. and after their going away, look, an angel of the L-rd (G-d) showed himself to Joseph in a dream, in this way to say: stand up and take the child and his mother, and flee to Egypt, and remain there, until I will you (SG) tell; because Herod will seek this child, so that him destroy.