school of the prophets

In the school of the prophets to greet the others as they would come in would be said:

Art thou a brother or brethren? I salute you in the name of the Lord Jesus Christ, in token or remembrance of the everlasting covenant, in which covenant I receive you to fellowship, in a determination that is fixed, immovable, and unchangeable, to be your friend and brother through the grace of God in the bonds of love, to walk in all the commandments of God blameless, in thanksgiving, forever and ever. Amen.  (D&C 88:133)

Here's an article discussing what each sentence may mean.

https://scriptoriumblogorium.blogspot.com/2013/03/the-teachers-greeting-in-school-of.html?m=1