The general meaning is this: Jonathan had an intuitive sense, doubtless from God, that David would be established on the throne. By God's mercy, he…

And thou shalt not only while yet I live shew me the kindness of the Lord, that I die not. — The Hebrew of this and the n…

And Jonathan said to David, O LORD God of Israel, when I have sounded my father about tomorrow any time, or the third day, and, behold, if ther…

And you shall not only, while yet I live, show me the
kindness of the Lord
Such kindn…

Jonathan faithfully promises that he would let David know how he found his father disposed towards him. It will be a kindness to ourselves and to o…