In homily 51, St. Isaac begins a paragraph by quoting St. Gregory (I don’t know which one): “He is a temple of grace who is united with God, and is constant in his concern over His judgement.”  St. Isaac then asks, “what is concern over God’s judgement?”  His answer is quite surprising, a non sequitur really.  He doesn’t actually deal with God’s judgement at all, at least not in the way that…