Jesus was sending two disciples to set up things (Mk 14:13-14:13)

“Jesus sent

Two of his disciples.

He said to them.

‘Go!

Into the city!

A man carrying

A jar of water

Will meet you.

Follow him!’”

 

καὶ ἀποστέλλει δύο τῶν μαθητῶν αὐτοῦ καὶ λέγει αὐτοῖς Ὑπάγετε εἰς τὴν πόλιν, καὶ ἀπαντήσει ὑμῖν ἄνθρωπος κεράμιον ὕδατος βαστάζων· ἀκολουθήσατε αὐτῷ,

 

This is similar to Matthew, chapter 26:18, and Luke, chapter 22:8-10.  Mark indicated that Jesus sent out 2 of his unnamed disciples (καὶ ἀποστέλλει δύο τῶν μαθητῶν αὐτοῦ), while Luke mentioned that it was Peter and John.  Jesus then told them (καὶ λέγει αὐτοῖς) that they were to go into the city (Ὑπάγετε εἰς τὴν πόλιν) of Jerusalem.  There, they would meet a certain unnamed man (καὶ ἀπαντήσει ὑμῖν ἄνθρωπος), who would be carrying a jar or pitcher of water (κεράμιον ὕδατος βαστάζων).  They were to accompany or follow him (ἀκολουθήσατε αὐτῷ).