וַיֹּ֣אמֶר דָּוִ֔ד הֲכִ֣י יֶשׁ־ע֔וֹד אֲשֶׁ֥ר נוֹתַ֖ר לְבֵ֣ית שָׁא֑וּל וְאֶעֱשֶׂ֤ה עִמּוֹ֙ חֶ֔סֶד בַּעֲב֖וּר יְהוֹנָתָֽן׃
And David said: ‘Is there yet any that is left of the house of Saul, that I may show him kindness for Jonathan’s sake?’
Read kabbalistic (mystical) interpretation of II Samuel 9:1: and classical mystical sources.