I Samuel 18:26 Midrash

וַיַּגִּ֨דוּ עֲבָדָ֤יו לְדָוִד֙ אֶת־הַדְּבָרִ֣ים הָאֵ֔לֶּה וַיִּשַׁ֤ר הַדָּבָר֙ בְּעֵינֵ֣י דָוִ֔ד לְהִתְחַתֵּ֖ן בַּמֶּ֑לֶךְ וְלֹ֥א מָלְא֖וּ הַיָּמִֽים׃

And when his servants told David these words, it pleased David well to be the king’s son-in-law. And the days were not expired;

Read midrashic interpretation of I Samuel 18:26: and classical rabbinic exegesis.