1 Kings 10:12

And the king made of the almug trees pillars for the house of the LORD, and for the king’s house, harps also and psalteries for singers: there came no such almug trees, nor were seen unto this day.

The verse belongs to the account of Solomon's early reign, when the queen of Sheba visited to hear his wisdom and found that his reputation had not told her half of what she saw and heard. In that setting she came to gain knowledge from him, and people from many lands came to hear him teach about God as Creator, rather than focusing on the details of almug trees, pillars, harps, and psalteries. Almug trees brought from Ophir were made into pillars for the house of the Lord and for the king's house, and into harps and psalteries for singers. Such almug trees were exceptionally rare, with none like them brought in or seen again by that time, making them a notable part of Solomon's wealth. The trade that brought these valuable trees to Israel was part of the commercial opportunity created by the kingdom's location and sea routes. Solomon's use of such commercial opportunities for wealth and power displaced their purpose of making the true God known to travelers from many nations. The passage contrasts this early reputation for wisdom with later extravagant spending and misuse of wealth.