Charles Ellicott Commentary 2 Chronicles 15:2

"and he went out to meet Asa, and said unto him, Hear ye me, Asa, and all Judah and Benjamin: Jehovah is with you, while ye are with him; and if ye seek him, he will be found of you; but if ye forsake him, he will forsake you." — 2 Chronicles 15:2 (ASV)

And he went out to meet. —Literally, before (1 Chronicles 12:17; 2 Chronicles 14:9). Azariah met the king on his return from battle.

Hear ye me, Asa, and all Judah. —(Compare to Abijah’s speech, 2 Chronicles 13:4: Hear ye me, Jeroboam, and all Israel!)

The Lord is with you, while ye be with him. —Or, Jehovah was with you (in the battle), because ye were with him (i.e., clung to him for help; see 2 Chronicles 14:11).

And if ye seek him ... forsake you. —This generalises the preceding statement. It is a favourite formula with the chronicler (See 1 Chronicles 28:9; and for the last clause, 2 Chronicles 12:5; 2 Chronicles 24:20; compare also to Jeremiah 29:13-14).

He will be found. —Or, is found.

He will forsake. —Or, he forsaketh.