Melaḵim Aleph (1 Kings) 12:33

And he made offerings on the slaughter-place which he had made at Bĕyth Ěl on the fifteenth day of the eighth new moon, in the new moon which he had devised in his own heart. And he performed a festival for the children of Yisra’ĕl, and offered on the slaughter-place and burned incense.