“Ye Shall Call on the Father in My Name, in Mighty Prayer; and After Ye Have Done This Ye Shall Have Power”
Priesthood power is governed by principles of faith and righteousness (see D&C 121:36). In order to properly represent the Lord in any priesthood capacity, the priesthood holder must be a pure and worthy receptacle of the Spirit of the Lord. It is only through personal preparation by worthy living and seeking the guidance of the Spirit in mighty prayer that a priesthood holder will be empowered with divine utterance in speaking for and in behalf of the Lord in all priesthood blessings and ordinances.
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