“Now the eleven disciples
Went to Galilee.
To the mountain
Had directed them
Οἱ δὲ ἕνδεκα μαθηταὶ ἐπορεύθησαν εἰς τὴν Γαλιλαίαν, εἰς τὸ ὄρος οὗ ἐτάξατο αὐτοῖς ὁ Ἰησοῦς,
This is unique to Matthew, since he was the only one that has the post-resurrection Jesus appear on a mountain in Galilee talking to his 11-member leadership team of apostolic disciples. He said that these 11 disciples traveled or went to Galilee (Οἱ δὲ ἕνδεκα μαθηταὶ ἐπορεύθησαν εἰς τὴν Γαλιλαίαν), since Judas had been eliminated. They went to an unspecified or unnamed hill or mountain that Jesus had directed or assigned them to go to (εἰς τὸ ὄρος οὗ ἐτάξατο αὐτοῖς ὁ Ἰησοῦς). Once again, like Moses, the commanding statements from God will be on a mountain, closer to heaven or the sky rather than on plain ground.