Genesis 35:1

And God said unto Jacob, Arise, go up to Bethel, and dwell there; and make there an altar unto God, that appeared unto thee when thou fleddest from the face of Esau, thy brother. Ten full years had now elapsed since Jacob had returned from Mesopotamia, and still he had not fulfilled the special vow of Bethel, Genesis 28:20. Cf Genesis 31:13. Whether it had been a matter of precaution against a mingling with the Edomites or simply tardiness on Jacob's part, the Lord, at any rate, found it necessary to remind him of his vow, in which he had promised the erection of an altar unto God, who had appeared to him at Bethel.