2 Chronicles 15:14-15 (ESV)
They swore an oath to the LORD with a loud voice and with shouting and with trumpets and with horns. And all Judah rejoiced over the oath, for they had sworn with all their heart and had sought him with their whole desire, and he was found by them, and the LORD gave them rest all around.
The book of 2 Chronicles is about the kings of Judah and how their leadership impacted the nation. Asa, the third king since Rehoboam, a good king at the start, is now leading. He brought all of Judah together and led them in a great battle over one million Ethiopians, who had 300 chariots. Because Asa came to God for strength and support, God blessed him. In the above text we read about the oath Asa lead the nation of Judah to take. This was a blessed time. But in his latter years, Asa failed this same test. When another king came out against him (Baasha King of Israel), instead of turning to God for strength and support, he turned to Syria for help (chapter 16). The same people he lead to make the above oath, in the end he lead them to break the oath. Note what Asa is told by a prophet:
2 Chronicles 16:7-9 (ESV)
At that time Hanani the seer came to Asa king of Judah and said to him, “Because you relied on the king of Syria, and did not rely on the LORD your God, the army of the king of Syria has escaped you. Were not the Ethiopians and the Libyans a huge army with very many chariots and horsemen? Yet because you relied on the LORD, he gave them into your hand. For the eyes of the LORD run to and fro throughout the whole earth, to give strong support to those whose heart is blameless toward him. You have done foolishly in this, for from now on you will have wars.”
God is watching and noting our inward motivations and commitments to Him. He knows when we trust Him. But He also knows when we don’t.