'Certainty' in the Bible

But there will be no more gloom for her who was in anguish [for with judgment comes the promise of salvation]. In earlier times He treated the land of Zebulun and the land of Naphtali with contempt, but later on He will make them honored [by the presence of the Messiah], by the way of the sea, on the other side of Jordan, Galilee of the Gentiles.