I have a theory that, before revealing Himself to the Church (represented by the Eleven, being the foundation stones of the Church), He reveals the missions that the members of His Body must fulfill. These are Prophet (the women, who recognized Jesus through His word), Priest (the disciples on the road to Emmaus, who recognized Jesus through the Eucharist), and King (Simon Peter… we have no record of this meeting).
After these three meetings, He meets the Eleven and after establishing who He is, does the following, as recorded in John:
“ He said therefore to them again: Peace be to you. As the Father hath sent me, I also send you.  When he had said this, he breathed on them; and he said to them: Receive ye the Holy Ghost.  Whose sins you shall forgive, they are forgiven them; and whose sins you shall retain, they are retained.”
And after establishing who He is, does the following, as recorded by Luke:
“ And he said to them: These are the words which I spoke to you, while I was yet with you, that all things must needs be fulfilled, which are written in the law of Moses, and in the prophets, and in the psalms, concerning me.  Then he opened their understanding, that they might understand the scriptures.”
And in Matthew:
“ And Jesus coming, spoke to them, saying: All power is given to me in heaven and in earth.  Going therefore, teach ye all nations; baptizing them in the name of the Father, and of the Son, and of the Holy Ghost.  Teaching them to observe all things whatsoever I have commanded you: and behold I am with you all days, even to the consummation of the world.”
And again in Mark:
“ And he said to them: Go ye into the whole world, and preach the gospel to every creature.”
In John, we see Jesus confer the Priestly power (forgiveness of sins) on the Eleven.
In Luke, we see Jesus confer the Prophetic power (knowledge of God) on the Eleven.
In Matthew, we see Jesus confer the Kingly power (administration - of Jesus’ prophethood–teach all nations, of Jesus’ priesthood–baptizing them in the power of the Trinity, and also of the Laws of God–teaching them to observe all that Jesus has commanded).
In Mark, we see Jesus command all of this in a kind of summarized form: “preach the gospel to every creature.” To preach isn’t simply to teach, though this is included, but it also implies a call to repentance and obedience. “To every creature” implies universal dominion.
Just my $0.02.