Chronicles II 15:12-14

12 And he entered into a covenant that they should seek the Lord God of their fathers with all their heart and with all their soul.
13 And that whoever should not seek the Lord God of Israel, should die, whether young or old, whether man or woman.
14 And they swore to the Lord with a loud voice, and with trumpets, and with cornets.

Chronicles II 15:12-14 Meaning and Commentary

INTRODUCTION TO 2 CHRONICLES 15

Asa returning from the battle, and with the spoil of the enemy, was met by a prophet of the Lord, who encouraged him to go on with the work of reformation, promising the presence and help of God with him, 2Ch 15:1-7, which inspired him with fresh courage, and he went about the work with great alacrity; and having offered sacrifices, he and his people entered into a solemn covenant with the Lord, to serve him, 2Ch 15:8-15 upon which he destroyed his mother's idol, brought the dedicated things into the house of God, and the effect of this was peace for a long time, 2Ch 15:16-19.

The Brenton translation of the Septuagint is in the public domain.