1 Kings 11:10 KJV
And had commanded him concerning this thing, that he should not go after other gods: but he kept not that which the Lord commanded.
1 Kings 11:10, King James Version
In context
9 And the Lord was angry with Solomon, because his heart was turned from the Lord God of Israel, which had appeared unto him twice,
10 And had commanded him concerning this thing, that he should not go after other gods: but he kept not that which the Lord commanded.
11 Wherefore the Lord said unto Solomon, Forasmuch as this is done of thee, and thou hast not kept my covenant and my statutes, which I have commanded thee, I will surely rend the kingdom from thee, and will give it to thy servant.