1 Kings 3:1-2

1Now Solomon became a son-in-law to Pharaoh king of Egypt [and formed an alliance] by taking Pharaoh’s daughter [in marriage]. He brought her to the City of David [where she remained temporarily] until he had finished building his own house (palace) and the house of the Lord and the wall around Jerusalem.

2But [in the meantime] the people were still sacrificing [to God] on the high places (hilltops) [as the pagans did to their idols], for there was no [permanent] house yet built for the Name of the Lord.