Matthew 28:18
Still economically, and in a more human way, he said “it was given to me.” (Matthew 28:18) Yet he wants it understood that he has authority over all as God, and that, leaving the measure of the emptying, he ran back into the glory innate and always present to him, and is confessed God and Lord of all even with the flesh. So when he says “it was given to me,” it is not as if he first received it when he became human, but as receiving, in the rank of a human, what he always had because he exists from the Father and is God by nature.
Greek
Οἰκονομικῶς ἔτι καὶ ἀνθρωπινώτερον ἔφη τὸ ἐδόθη μοι· πλὴν βούλεται νοεῖσθαι, ὅτι τὴν κατὰ πάντων ἔχει ἐξουσίαν ὡς θεὸς καὶ ἀφεὶς τὸ τῆς κενώσεως μέτρον εἰς τὴν ἔμφυτον καὶ ἀεὶ προσοῦσαν αὐτῷ δόξαν ἀνέδραμεν καὶ μετὰ σαρκὸς θεὸς τῶν ὅλων καὶ κύριος ὁμολογούμενος. λοιπὸν οὖν λέγει ἐδόθη μοι οὐχ ὡς πρῶτον λαβών, ὅτε γέγονεν ἄνθρωπος, ἀλλ' ὅπερ εἶχεν ἀεὶ διὰ τὸ ὑπάρχειν ἐκ πατρὸς καὶ φύσει θεὸς ὡς ἐν ἀνθρώπου τάξει δεχόμενος.