Baasha king of Israel. 2 Chronicles 16:1-6 is nearly the same as 1 Kings 15:17-22, indicating that both had used the records in the now-lost “book of the chronicles of the kings of Judah (1 Kings 15:23).

came up against Judah. There is an apparent problem with dates here. Baasha is said to have begun his reign in Israel in the third year of Asa's reign in Judah and then to have his reign ended in the twenty-sixth year of Asa (1 Kings 15:28; 16:8). Yet this verse says that Baasha came up against Judah in the thirty-sixth year of Asa, seemingly nine years after his own death. Other than a possible copyist error here, it has been suggested that the intent of the statement was “the thirty-sixth year of the divided kingdom, now under Asa.”

Ramah. Ramah was only about five miles from Jerusalem, so a military outpost there from Israel could pose a serious threat to the capital. In order to minimize this threat, Asa felt he should bribe the king of Syria to attack Israel, and Ben-hadad did exactly that. Note 2 Chronicles 16:4.

Geba and Mizpah. These cities were near enough to Ramah to make it imprudent for Baasha to try again to fortify Ramah.

Hanani the seer. Hanani was the father of Jehu, the prophet who later would prophesy in the days of Jehoshaphat (2 Chronicles 19:2).

throughout the whole earth. Even though God had chosen Israel as His elect nation, He has always been concerned about all His creation. Even though other nations as a whole have forgotten Him, worshiping various nature gods, there are evidently individuals in such nations whose hearts desire to know Him, and to these God will somehow reveal Himself. “In every nation he that feareth Him, and worketh righteousness, is accepted with Him” (Acts 10:35).

great burning. Asa was buried, not cremated. The “burning” was probably a burning of spices in honor of Asa's earlier godly accomplishments.