Passage
You will have joy and gladness; and many will rejoice at his birth.
You will have joy and gladness; and many will rejoice at his birth.
Luke 1:12 Zacharias was troubled when he saw him, and fear fell upon him.
Luke 1:13 But the angel said to him, “Don’t be afraid, Zacharias, because your request has been heard, and your wife, Elizabeth, will bear you a son, and you shall call his name John.
Luke 1:14 You will have joy and gladness; and many will rejoice at his birth.
Luke 1:15 For he will be great in the sight of the Lord, and he will drink no wine nor strong drink. He will be filled with the Holy Spirit, even from his mother’s womb.
Luke 1:16 He will turn many of the children of Israel to the Lord, their God.
The verse centers on "gladness", "rejoice", and "birth". It is saying that the verse draws attention to "gladness" and "rejoice", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 13's "But the angel said to him Don..." into verse 15's "For he will be great in the...", so "gladness" and "rejoice" 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 "gladness" and "rejoice" with trust shaped by these words, not by a vague optimism outside the passage.