Sword of the Spirit

Weapon (any weapon), legendary (requires attunement)

This sword is of otherworldly construction, forged with a metal you cannot identify. Its surface is cool to the touch, and seems almost to vibrate with energy. The cross-guard is shaped like the wings of a dove, and every inch of the double-edged blade is etched with intricate Hebrew lettering that spell out scripture verses. When the weapon first presents itself to you, it has the appearance of a longsword, but as you attune to it, it takes on the shape of any weapon of your choice. While attuned to this magic weapon, you gain the following benefits:

You have a +3 bonus to attack and damage rolls.
Whenever you make Persuasion or Religion checks, treat a roll of 14 or lower as a 15.
You can use a Magic action to cast spirit guardians from the sword, no concentration required. Once you have used this feature, you cannot do so again until you finish a short or long rest.

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