1 Kings 10:1-5

Now when the queen of Sheba heard about the fame of Solomon concerning the name of the LORD, she came to test him with difficult questions. So she came to Jerusalem with a very large retinue, with camels carrying spices and very much gold and precious stones. When she came to Solomon, she spoke with him about all that was in her heart. Solomon answered all her questions; nothing was hidden from the king which he did not explain to her. When the queen of Sheba perceived all the wisdom of Solomon, the house that he had built, the food of his table, the seating of his servants, the attendance of his waiters and their attire, his cupbearers, and his stairway by which he went up to the house of the LORD, there was no more spirit in her.