has its proper place: 'One of the Trinity has suffered.' The formula can already be found in Gregory Nazianzen: 'We needed a ... crucified God'." But if theopaschism indicates only a Christological kenosis (or kenotic Christology), instead von Balthasar supports a Trinitarian kenosis: "The persons of the Trinity constitute themselves as who they are through the very act of pouring themselves out for each other". The underlying question is if the three Persons of the Trinity can live a self-love (), as well as if for them, with the conciliar dogmatic formulation in terms that today we would call ontotheological, it is possible that the aseity () is valid. If the Father is not the Son or the Spirit since the generator/begetter is not the generated/begotten nor the generation/generative process and vice versa, and since the lover is neither the beloved nor the love dynamic between them and vice versa, Christianity has provided as a response a concept of divine ontology and love different from common sense (omnipotence, omnibenevolence, impassibility, etc.): an oblative, sacrificial, martyrizing, crucifying, precisely kenotic concept. Trinity and will Benjamin B. Warfield saw a principle of subordination in the "modes of operation" of the Trinity, but was also hesitant to ascribe the same to the "modes of subsistence" in relation of one to another. While noting that it is natural to see a subordination in function as reflecting a similar subordination in substance, he suggests that this might be the result of "an agreement by Persons of the Trinity – a 'Covenant' as it is technically called – by virtue of which a distinct function in the work of redemption is assumed by each". Trinity and Christian apologetics Today, several analogies for the Trinity abound. The comparison is sometimes made between the triune God and H2O. Just as H2O can come in three distinct forms (liquid, solid, gas), so God appears as Father, Son, Spirit. The mathematical analogy, "1+1+1=3, but 1x1x1=1" is also used to explain the Trinity. Political aspect According to Eusebius, Constantine suggested the term at the Council of Nicaea, though most scholars have doubted that Constantine had such knowledge and have thought that most likely Hosius had suggested the term to him. Constantine later changed his view about the Arians, who opposed the Nicene formula, and supported the bishops who rejected the formula, as did several of his successors, the first emperor to be