Scottie wrote: spending boatloads of money on their temples because God commanded Solomon to do the same thing.
There is some Biblical evidence that God never really wanted a Temple in the first place. According to 2 Sam. 7:2, the Temple was actually King David's idea. He says to the prophet Nathan, "See now, I dwell in an house of cedar, but the ark of God dwelleth within curtains."
This curtain can be seen as the tabernacle Israel carried with them through their sojourn in the desert.
The measurements of the Holy Place in the Temple imply that this same tabernacle - this curtain containing the ark - dwelt within the Temple for a time during the history of Israel.
The Lord replies through the prophet:
2 Samuel 7:5 Go and tell my servant David, Thus saith the LORD, Shalt thou build me an house for me to dwell in?
6 Whereas I have not dwelt in any house since the time that I brought up the children of Israel out of Egypt, even to this day, but have walked in a tent and in a tabernacle.
7 In all the places wherein I have walked with all the children of Israel spake I a word with any of the tribes of Israel, whom I commanded to feed my people Israel, saying, Why build ye not me an house of cedar?
Is essense, He asks, "in all my time dwelling with you, have I ever asked you to build me a house?"
Despite God's apparent disapproval, He promises to allow David's son to build a Temple and to bless it.
God goes on to destroy the Temple - twice - when the people rely on their own work in the Temple more so than what it represents, the mercy of God.