And this greater priesthood administereth the gospel and holdeth the key of the mysteries of the kingdom, even the key of the knowledge of God. Therefore, in the ordinances thereof, the power of godliness is manifest. And without the ordinances thereof, and the authority of the priesthood, the power of godliness is not manifest unto men in the flesh; For without this no man can see the face of God, even the Father, and live.

30 For God having sworn unto Enoch and unto his seed with an oath by himself; that every one being ordained after this order and calling should have power, by faith, to break mountains, to divide the seas, to dry up waters, to turn them out of their course;
31 To put at defiance the armies of nations, to divide the earth, to break every band, to stand in the presence of God; to do all things according to his will, according to his command, subdue principalities and powers; and this by the will of the Son of God which was from before the foundation of the world. ( JST, Genesis 14)

30 Therefore there was a law given them, yea, a law of performances and of ordinances, a law which they were to observe strictly from day to day, to keep them in remembrance of God and their duty towards him.
31 But behold, I say unto you, that all these things were types of things to come. (Mosiah, Chapter 13)

42 And wo unto all those who come not unto this priesthood which ye have received, which I now confirm upon you who are present this day, by mine own voice out of the heavens; and even I have given the heavenly hosts and mine angels charge concerning you.
48 And the Father teacheth him of the covenant which he has renewed and confirmed upon you, which is confirmed upon you for your sakes, and not for your sakes only, but for the sake of the whole world. ( Doctrine and Covenants, Section 84)

If so, how did Joseph see God the Father and God the Son without the Priesthood being first restored?

I came across the following scripture in my studies for this lesson.
D&C 84:19-22

And this greater priesthood administereth the gospel and holdeth the key of the mysteries of the kingdom, even the key of the knowledge of God. Therefore, in the ordinances thereof, the power of godliness is manifest. And without the ordinances thereof, and the authority of the priesthood, the power of godliness is not manifest unto men in the flesh; For without this no man can see the face of God, even the Father, and live.

There has been discussion on this forum that ordinances of the Priesthood are only there to prepare people to receive the higher covenant and that it is possible to bypass these ordinances and see the face of God the Father without such ordinances as Baptism. These verses seem quite clear in declaring we cannot bypass these ordinances. The only possible way through this is to say the power of godliness may be made manifest unto men in the Spirit. If so, how did Joseph see God the Father and God the Son without the Priesthood being first restored?