Genesis 35:1-2, 4

Then God said to Jacob, “Arise, go up to Bethel and live there, and make an altar there to God, who appeared to you when you fled from your brother Esau.” So Jacob said to his household and to all who were with him, “Put away the foreign gods which are among you, and purify yourselves and change your garments

So they gave to Jacob all the foreign gods which they had and the rings which were in their ears, and Jacob hid them under the oak which was near Shechem.