Parallel
1 Corinthians 14:8
Nestle 1904 Greek New Testament · Berean Standard Bible
Καὶ γὰρ ἐὰν ἄδηλον σάλπιγξ φωνὴν δῷ τίς παρασκευάσεται εἰς πόλεμον
Again, if the trumpet sounds a muffled call, who will prepare for battle?