1 Sam 18:17

וַיֹּ֨אמֶר שָׁא֜וּל אֶל־דָּוִ֗ד הִנֵּה֩ בִתִּ֨י הַגְּדוֹלָ֤ה מֵרַב֙ אֹתָהּ֙ אֶתֶּן־לְךָ֣ לְאִשָּׁ֔ה אַ֚ךְ הֱיֵה־לִּ֣י לְבֶן־חַ֔יִל וְהִלָּחֵ֖ם מִלְחֲמ֣וֹת יְהוָ֑ה וְשָׁא֣וּל אָמַ֗ר אַל־תְּהִ֤י יָדִי֙ בּ֔וֹ וּתְהִי־ב֖וֹ יַד־פְּלִשְׁתִּֽים׃ ס

Then Saul said to David, “Here is my older daughter Merab. I will give her to you in marriage. Only be valiant for me and fight the LORD’s battles.” But Saul was thinking, “I need not raise my hand against him; let the hand of the Philistines be against him.”