Passage
And suddenly there was with the angel a multitude of the heavenly host praising God, and saying,
And suddenly there was with the angel a multitude of the heavenly host praising God, and saying,
Luke 2:11 for there is born to you this day in the city of David a Saviour, who is Christ the Lord.
Luke 2:12 And this [is] the sign unto you: Ye shall find a babe wrapped in swaddling clothes, and lying in a manger.
Luke 2:13 And suddenly there was with the angel a multitude of the heavenly host praising God, and saying,
Luke 2:14 Glory to God in the highest, And on earth peace among men in whom he is well pleased.
Luke 2:15 And it came to pass, when the angels went away from them into heaven, the shepherds said one to another, Let us now go even unto Bethlehem, and see this thing that is come to pass, which the Lord hath made known unto us.
The verse centers on "suddenly", "angel", "multitude", "heavenly", "host", "praising", and "saying". It is saying that the verse draws attention to "suddenly" and "angel", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 12's "And this is the sign unto you..." into verse 14's "Glory to God in the highest And...", so "suddenly" and "angel" belong inside that flow. In Luke context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "suddenly" and "angel" with trust shaped by these words, not by a vague optimism outside the passage.