D&C 107:8

D&C 107:8
 8 The Melchizedek Priesthood holds the right of presidency, and has power and authority over all the offices in the church in all ages of the world, to administer in spiritual things.

Sonnet 820 D&C 107:8

We sing in praise of prophets and give thanks
For presidents who guide us in our days
We marvel to have priesthood in our ranks
To teach and bless and organize our ways.

The power and authority is great
The same that made the heavens and the earth
Preparing and extending as we wait
For that return of true eternal worth.

In matters of the Spirit we defer
To all the keys of priesthood held today
The same as what all ages did confer
Administering the Church in heaven's way.

And all the saints uphold with faithful care
The prophet by our confidence and prayer.