Jesus says the Father alone knows the day of his return (Mark 13:32) and that the Father is greater than he is. A being who is ignorant and calls another greater is not equal. That’s nature, not role.

Mark 13:32 is the hardest text for any high Christology and it should be quoted, not avoided. The classical answer is that the incarnate Son, living a genuinely human life, had a genuinely human mind that did not access everything the divine nature knows; that is what fully human costs. Whether that answer is coherent is a real philosophical question with a large literature (Thomas Morris’s two-minds view, for example). What can be said without overreaching is that the same Gospel tradition that records Jesus’s ignorance also records him forgiving sins, accepting worship, and claiming preexistence, and any theory must explain both sets of texts, not one.