On the Mount of Olives, east of Jerusalem, he even built a pagan shrine for Chemosh, the detestable god of Moab, and another for Molech, the detestable god of the Ammonites.
What does 1 Kings 11:7 mean?
John Gill's Exposition of the Bible
Ver. 7 Then did Solomon build an high place for Chemosh,
abomination of Mesh Of this idol, (See Gill on Jeremiah 48:7), an
high place for which he ordered to be built, or at least suffered
it to be built, at the instigation of his Moabitish woman or women,
( 1 Kings
11:1 ) , this was built in the hill that is before Jerusalem;
on the mount of Olives, as Jarchi, called from hence afterwards the
mount of corruption, ( 2 Kings 23:15 ) and for
Molech, the abomination of the children of Ammon, ( 1 Kings 11:5 ) .