Gabriel’s answer to Zachariah’s question is very powerful. His statement gives a sense that who he is should be evidence enough that what he says is true.

Those are powerful words, when one lives in such a way to be able to respond with great personal integrity. What a goal.

18 And Zacharias said unto the angel, Whereby shall I know this? for I am an old man, and my wife well stricken in years.

19 And the angel answering said unto him, I am Gabriel, that stand in the presence of God; and am sent to speak unto thee, and to shew thee these glad tidings.

20 And, behold, thou shalt be dumb, and not able to speak, until the day that these things shall be performed, because thou believest not my words, which shall be fulfilled in their season.  (Luke 1:18-20)

Other questions that might be asked from this interaction include:

1 – Was Noah, the mortal name for Gabriel, translated, such that he could perform this and other missions as an embodies angel (see Daniel 8:16, and BD Angel)?

2 – In his work in Luke 1, he was an Elias (see D&C 27:6-7, and BD Elias). It would seem odd to bestow a title upon him for doing one single duty such as visiting Zacharias, or even two, visiting Mary as well. No, it seems that to earn a title of Elias one probably is primarily responsible for preparing for a major event. Would it be possible that Gabriel was in charge of all aspects of the Savior’s birth, including dreams to Joseph, Samuel the Lamanite’s prophecies, shepherd announcement, Magi inspiration, etc.?

3. If so, how much of the latter-day restoration was or is under the direction of Elijah?

4. How might missionaries aspire to be angels? How is the Aaronic priesthood hold the keys of the ministry of angels (See D&C 13).