In both Hebrew and Greek, the root word of angel is “messenger.

From the beginning of time, God has “sent angels to minister unto the children of men, to make manifest … the coming of Christ.”8 Angels are heavenly beings bearing God’s message.9 In both Hebrew and Greek, the root word of angel is “messenger.”10

In much the same way that angels are authorized messengers sent by God to declare His word and thereby build faith, we who hold the Aaronic Priesthood have been ordained to “teach, and invite all to come unto Christ.”11 To preach the gospel is a priesthood duty. And the power associated with this duty is not just for prophets or even just for missionaries. It is for you!12

What Every Aaronic Priesthood Holder Needs to Understand, April 2018 General Conference, Douglas D. Holmes