2 Samuel 15:9

וַיְהִי מִקֵּץ אַרְבָּעִים שָׁנָה וַיֹּאמֶר אַבְשָׁלוֹם אֶל־הַמֶּלֶךְ אֵלֲכָה נָּא וַאֲשַׁלֵּם אֶת־נִדְרִי אֲשֶׁר־נָדַרְתִּי לַֽיהוָה בְּחֶבְרֽוֹן

And it came to pass at the end of forty years, that Absalom said unto the king: ‘I pray thee, let me go and pay my vow, which I have vowed unto the LORD, in Hebron.

כִּי־נֵדֶר נָדַר עַבְדְּךָ בְּשִׁבְתִּי בִגְשׁוּר בַּאֲרָם לֵאמֹר אִם־ישיב יְשִׁיבֵנִי יְהוָה יְרוּשָׁלִַם וְעָבַדְתִּי אֶת־יְהוָֽה

For thy servant vowed a vow while I abode at Geshur in Aram, saying: If the LORD shall indeed bring me back to Jerusalem, then I will serve the LORD.’

וַיִּשְׁלַח אַבְשָׁלוֹם מְרַגְּלִים בְּכָל־שִׁבְטֵי יִשְׂרָאֵל לֵאמֹר כְּשָׁמְעֲכֶם אֶת־קוֹל הַשֹּׁפָר וַאֲמַרְתֶּם מָלַךְ אַבְשָׁלוֹם בְּחֶבְרֽוֹן

But Absalom sent spies throughout all the tribes of Israel, saying: ‘As soon as ye hear the sound of the horn, then ye shall say: Absalom is king in Hebron.’

וְאֶת־אַבְשָׁלוֹם הָלְכוּ מָאתַיִם אִישׁ מִירוּשָׁלִַם קְרֻאִים וְהֹלְכִים לְתֻמָּם וְלֹא יָדְעוּ כָּל־דָּבָֽר

And with Absalom went two hundred men out of Jerusalem, that were invited, and went in their simplicity; and they knew not any thing.