Thummim

Wondrous item, legendary (requires attunement by a cleric)

This small polished stone of black onyx pulses with divine energy. Roughly translated as either “truth” or “light,” the Thummim was used in ancient Israel by priests as a method of divination. After the kingdoms of Israel and Judah were destroyed by Babylon, the Thummim and its counterpart, the Urim, were lost to history... until now.

The Thummim in your possession is imbued with residual divination magic that grants you the following benefit:

Once per day, you can cast the zone of truth spell from the Thummim.

Developments. If you reunite the Urim and Thummim, become attuned to both simultaneously, their powers combine to form a legendary artifact of tremendous power. While attuned to both stones, you can see beyond the veil and have the ability to peer into the immediate future. You gain the following benefits:

You cannot be surprised; surprise does not impose Disadvantage on your Initiative rolls.
You have truesight out to a range of 30 feet.
You gain a bonus to your AC and saving throws equal to your Wisdom modifier.

Bible5e custom item. Its specific properties supplement the standard magic item rules.