Reference for I Samuel 28:2

וַיֹּ֤אמֶר דָּוִד֙ אֶל־אָכִ֔ישׁ לָכֵן֙ אַתָּ֣ה תֵדַ֔ע אֵ֥ת אֲשֶׁר־יַעֲשֶׂ֖ה עַבְדֶּ֑ךָ וַיֹּ֤אמֶר אָכִישׁ֙ אֶל־דָּוִ֔ד לָכֵ֗ן שֹׁמֵ֧ר לְרֹאשִׁ֛י אֲשִֽׂימְךָ֖ כָּל־הַיָּמִֽים׃ (פ)

And David said to Achish: ‘Therefore thou shalt know what thy servant will do.’ And Achish said to David: ‘Therefore will I make thee keeper of my head for ever.’ .

BDB

BDB