Passage
And his mouth was opened immediately, and his tongue, and he spake, blessing God.
And his mouth was opened immediately, and his tongue, and he spake, blessing God.
Luke 1:62 And they made signs to his father as to what he might wish it to be called.
Luke 1:63 And having asked for a writing-table, he wrote saying, John is his name. And they all wondered.
Luke 1:64 And his mouth was opened immediately, and his tongue, and he spake, blessing God.
Luke 1:65 And fear came upon all who dwelt round about them; and in the whole hill-country of Judaea all these things were the subject of conversation.
Luke 1:66 And all who heard them laid them up in their heart, saying, What then will this child be? And [the] Lord's hand was with him.
The verse centers on "mouth", "opened", "immediately", "tongue", "spake", and "blessing". It is saying that the verse draws attention to "mouth" and "opened", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 63's "And having asked for a writing-table he..." into verse 65's "And fear came upon all who dwelt...", so "mouth" and "opened" 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 "mouth" and "opened" with trust shaped by these words, not by a vague optimism outside the passage.