“... A dominant image in this passage is wisdom as a city, particu- larly as a city that cannot be conquered or plundered. This image is rather unusual. Later in the text, wisdom is described as price- less: see 13:13 and commentary there. [...] “Treasure” is often used of the fruit of wisdom or of righteous action: see Wisdom 7:14, ben Sira 29:11 and 29:12; compare 2 Enoch 50:5.374 Wisdom is also described as a treasure in 13:10 as in Isaiah 33:6 and Wis- dom 7:14 [...] In biblical wisdom literature, wisdom is often compared to gold, said to be better than gold, but it is not said to be gold. In many other passages it is compared with precious met- als and jewels: see Job 28:18, Proverbs 8:11 and 16:16. ...”