(1 Samuel 18:4)
Jonathan was one of the noblest men that ever lived, and perhaps the finest element in his character was his unselfishness. Though he was a prince, heir-apparent to his father’s throne, and though David was only a shepherd boy, yet so deep was Jonathan’s love for David that he was ready to give him all he had.
Jonathan fully expected that David would some day be king instead of himself; but nevertheless he felt no twinge of jealousy, and rejoiced in every step of David’s advancement. To do this indicated a wonderfully sweet nature, completely attuned to the will of God.
(Amos Wells)
"Therefore the Lord himself will give you a sign: The virgin will be with child and will give birth to a son, and you will call him Immanuel."
Isaiah 7: 14