In blessing Dan, Jacob's thoughts were occupied chiefly with his descendant Samson, who, like unto God, without any manner of assistance, conferred victory upon his people. Jacob even believed the strong, heroic man to be the Messiah, but when Samson's death was revealed to him, he exclaimed, "I wait for Thy salvation, O Lord, for Thy help is unto all eternity, while Samson's help is only for a time. The redemption" continued Jacob, "will not be accomplished by Samson the Danite, but by Elijah the Gadite, who will appear at the end of time."
Jacob Mistook Samson for the Messiah When Blessing Dan
Legends of the Jews 1:400