@mikemearls need a ruling. Can I use pact magic to use divine smite?

— Gary Ricker (@glricker44) November 24, 2014

What about Eldritch Smite (XGtE) – that specifies a Warlock Spell Slot – but can I use my Paladin Slots as well? Eldritch Smite works only with the slots you get from Pact Magic.

— Jeremy Crawford (@JeremyECrawford) January 1, 2018

Eldritch Smite works only with the slots you get from Pact Magic.

— Jeremy Crawford (@JeremyECrawford) January 1, 2018