Shmuel Bais 15:7-9

Orthodox Jewish Bible

⁷ And it came to pass after arba’im shanah, that Avshalom said unto HaMelech, Now let me go and fulfill my neder, which I have vowed unto Hashem, in Chevron.

⁸ For thy eved vowed a neder (vow) while I abode at Geshur in Syria, saying, If Hashem shall bring me again indeed to Yerushalayim, then I will serve Hashem.

⁹ And HaMelech said unto him, Go in shalom. So he arose, and went to Chevron.