Remembering things is the primary purpose of the check, but sometimes how you’re applying it might require an alternative skill check to make sense. Here are some examples (from https://rpgbot.net/dnd5/characters/impractical-skill-checks/ ):
Wisdom – Consoling and counselling a creature through a crisis of faith could be done with a Wisdom (Religion) check.
Charisma – Proselytizing for a faith makes more sense as a Charisma (Religion) check than a Charisma (Persuasion) check.
Remembering things is the primary purpose of the check, but sometimes how you’re applying it might require an alternative skill check to make sense. Here are some examples (from https://rpgbot.net/dnd5/characters/impractical-skill-checks/ ):
Wisdom – Consoling and counselling a creature through a crisis of faith could be done with a Wisdom (Religion) check. Charisma – Proselytizing for a faith makes more sense as a Charisma (Religion) check than a Charisma (Persuasion) check.I think the second example would do better as Charisma (Persuasion), with a situational advantage for it being specifically preaching