Passage
They swore to Yahweh with a loud voice, with shouting, with trumpets, and with cornets.
They swore to Yahweh with a loud voice, with shouting, with trumpets, and with cornets.
2 Chronicles 15:12 They entered into the covenant to seek Yahweh, the God of their fathers, with all their heart and with all their soul;
2 Chronicles 15:13 and that whoever would not seek Yahweh, the God of Israel, should be put to death, whether small or great, whether man or woman.
2 Chronicles 15:14 They swore to Yahweh with a loud voice, with shouting, with trumpets, and with cornets.
2 Chronicles 15:15 All Judah rejoiced at the oath, for they had sworn with all their heart, and sought him with their whole desire; and he was found by them. Then Yahweh gave them rest all around.
2 Chronicles 15:16 Also Maacah, the mother of Asa the king, he removed from being queen, because she had made an abominable image for an Asherah; so Asa cut down her image, ground it into dust, and burned it at the brook Kidron.
The verse centers on "swore", "yahweh", "loud", "voice", "shouting", "trumpets", and "cornets". It is saying that the verse draws attention to "swore" and "yahweh", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 13's "and that whoever would not seek Yahweh..." into verse 15's "All Judah rejoiced at the oath for...", so "swore" and "yahweh" belong inside that flow. In 2 Chronicles context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "swore" and "yahweh" with trust shaped by these words, not by a vague optimism outside the passage.