You can get to it along the edges with some combination of Paladin, Monk, and Hexblade Warlock, but there's a lot of wasted and irrelevant features in there, and you still need some houseruling.
Ideally, you'd start with a half-caster chassis, add in a version of Unarmored Defense, +Wis to attack with melee weapons, a mechanic to replicate the Oath of Enmity, and a spell list focused on smites, debuffs, and movement.
I do grant that "mystically endowed skirmisher from a mystery cult" is awfully specific, but I think it's OK for a class package to generate its own archetypes. Heck, the cleric might have lightly borrowed from Charlemagne and Van Helsing, but it pretty much created the "some fighting, some magic, divine caster" trope sui generis.