Bible Verses About Rings: Used for sealing decrees

Then were the king’s scribes called in the first month, on the thirteenth day thereof; and there was written according to all that Haman commanded unto the king’s satraps, and to the governors that were over every province, and to the princes of every people, to every province according to the writing thereof, and to every people after their language; in the name of king Ahasuerus was it written, and it was sealed with the king’s ring.

Write ye also to the Jews, as it pleaseth you, in the king’s name, and seal it with the king’s ring; for the writing which is written in the king’s name, and sealed with the king’s ring, may no man reverse.

And he wrote in the name of king Ahasuerus, and sealed it with the king’s ring, and sent letters by posts on horseback, riding on swift steeds that were used in the king’s service, bred of the stud: