“Keep awake therefore!
You do not know
On what day
Your Lord is coming.
But understand this!
If the owner
Of the house
Had known
In what part
Of the night
The thief was coming,
He would have stayed awake.
He would not have
Let his house
Be broken into.
Therefore,
You also must be ready!
The Son of Man
Is coming
At an unexpected hour.”
γρηγορεῖτε οὖν, ὅτι οὐκ οἴδατε ποίᾳ ἡμέρᾳ ὁ κύριος ὑμῶν ἔρχεται.
ἐκεῖνο δὲ γινώσκετε ὅτι εἰ ᾔδει ὁ οἰκοδεσπότης ποίᾳ φυλακῇ ὁ κλέπτης ἔρχεται, ἐγρηγόρησεν ἂν καὶ οὐκ ἂν εἴασεν διορυχθῆναι τὴν οἰκίαν αὐτοῦ.
διὰ τοῦτο καὶ ὑμεῖς γίνεσθε ἕτοιμοι, ὅτι ᾗ οὐ δοκεῖτε ὥρᾳ ὁ Υἱὸς τοῦ ἀνθρώπου ἔρχεται.
There is one sentence of this saying of Jesus in Matthew that is similar in Mark, chapter 13:35, and also in Luke, chapter 12:39-40, about the thief at night. Jesus warned his disciples to be vigilant. They were to stay awake (γρηγορεῖτε οὖν) because they did not know on what day (ὅτι οὐκ οἴδατε ποίᾳ ἡμέρᾳ) the Lord was coming (ὁ κύριος ὑμῶν ἔρχεται). They had to understand or realize (ἐκεῖνο δὲ γινώσκετε) that if an owner of a house had known at what time of the night a thief was coming (ὅτι εἰ ᾔδει ὁ οἰκοδεσπότης ποίᾳ φυλακῇ ὁ κλέπτης ἔρχεται), he would have been alert and stayed awake (ἐγρηγόρησεν ἂν). He would not have let his house be broken into (καὶ οὐκ ἂν εἴασεν διορυχθῆναι τὴν οἰκίαν αὐτοῦ). Therefore, they had to be ready or prepared (διὰ τοῦτο καὶ ὑμεῖς γίνεσθε ἕτοιμοι) for the coming of the Son of Man (ὁ Υἱὸς τοῦ ἀνθρώπου ἔρχεται) because he would be coming at an unexpected hour (ὅτι ᾗ οὐ δοκεῖτε ὥρᾳ).