BSA_en_tn/dan/05/07.md

those known for their wisdom in Babylon

This refers back to those who claimed to speak with the dead, the wise men, and the astrologers.

Whoever explains this writing and its meaning will be clothed with purple and will have a gold chain around his neck

This can be stated in active form. Alternate translation: "I will give purple clothes and a gold neck chain to whoever explains this writing and its meaning" (See: rc://en/ta/man/translate/figs-activepassive)

clothed with purple

Purple cloth was rare and reserved for royal officials. Alternate translation: "dressed in royal clothing" (See: rc://en/ta/man/translate/figs-explicit)

the third highest ruler

"the number three ruler" (See: rc://en/ta/man/translate/translate-ordinal)