Now when Asa heard these words and the prophecy which Azariah the son of Oded the prophet spoke, he strengthened himself and took away the detestable idols from all the land of Judah and Benjamin and from the cities which he had captured in the hill country of Ephraim. He then renewed the altar of Yahweh which was in front of the porch of Yahweh.
2 Chronicles 15:6 And nation was crushed by nation, and city by city, for God threw them into confusion with every kind of distress.
2 Chronicles 15:7 But you, be strong and do not let your hands fall limp, for there is reward for your work.”
2 Chronicles 15:8 Now when Asa heard these words and the prophecy which Azariah the son of Oded the prophet spoke, he strengthened himself and took away the detestable idols from all the land of Judah and Benjamin and from the cities which he had captured in the hill country of Ephraim. He then renewed the altar of Yahweh which was in front of the porch of Yahweh.
2 Chronicles 15:9 And he gathered all Judah and Benjamin and those from Ephraim, Manasseh and Simeon who sojourned with them, for many defected to him from Israel when they saw that Yahweh his God was with him.
2 Chronicles 15:10 So they assembled at Jerusalem in the third month of the fifteenth year of Asa’s reign.
The verse centers on "heard", "words", "prophecy", "azariah", "oded", "prophet", "spoke", and "strengthened". It is saying that the verse draws attention to "heard" and "words", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 7's "But you be strong and do not..." into verse 9's "And he gathered all Judah and Benjamin...", so "heard" and "words" 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 "heard" and "words" with trust shaped by these words, not by a vague optimism outside the passage.