This is a conversion of the Abadar's Truthtelling spell from Pathfinder 1e

You compel a creature not to speak falsehoods. Touch a creature, and until the spell ends, that creature must make a Charisma saving throw at the start of each of its turns. On a failed save, until the spell ends, the creature can't speak a deliberate lie and a flickering illusion covers the creature's form, resembling a being of perfect order such as a warden archon or marut.

An affected creature is aware of the spell and can thus avoid answering questions to which it would normally respond with a lie. Such a creature can be evasive in its answers as long as it remains within the boundaries of the truth.

A cleric who worships Abadar can replace one of their 2nd level Domain spells with this spell. The decision to substitute a Domain spell must be made upon gaining a new level of cleric, but you can change your decisions on the matter when you level up again.