 Lebens and Tuggy (2019) object that such arguments trade on the ambiguity of “perfect love”. Divinity, by implying moral perfection, implies the character trait of being perfectly loving. But someone may have this and yet not be in the sort of interpersonal relationship that Swinburne describes as “perfect love”. (See also Tuggy 2015.) Using familial analogies, Brian Leftow challenges Swinburne’s claim that the three would lack an overriding reason to produce a fourth, noting that “Cooperating with two to love yet another is a greater ‘balancing act’ than cooperating with one to love yet another” (1999, 241).