“But about that day
And that hour,
No one knows.
Not even the angels
In heaven,
Nor the Son,
But only the Father knows.”
Περὶ δὲ τῆς ἡμέρας ἐκείνης καὶ ὥρας οὐδεὶς οἶδεν, οὐδὲ οἱ ἄγγελοι τῶν οὐρανῶν οὐδὲ ὁ Υἱός, εἰ μὴ ὁ Πατὴρ μόνος.
This is exactly the same, word for word, in Mark, chapter 13:32, but not in Luke. Interesting enough, Jesus said that no one would know the day or the hour (Περὶ δὲ τῆς ἡμέρας ἐκείνης καὶ ὥρας οὐδεὶς οἶδεν) of the end times. Jesus emphasized that not even the angels in heaven (οὐδὲ οἱ ἄγγελοι τῶν οὐρανῶν) or the Son (οὐδὲ ὁ Υἱός) knew when this was going to happen. Only the Father knew this (, εἰ μὴ ὁ Πατὴρ μόνος). This was such a big secret that no one knew when it was going to happen, since only the Father knew the exact day and time. Thus, not even the Son knew this was going to take place. Thus, there is another instance of the Son being subordinate to the Father.