Per that wikipedia entry this current conflict began with an attack on Israel. Hezbollah attacked a much more powerful enemy so a statement that stops at "they've both been doing it" does not accurately capture the casus belli:

"Israel and <strikethrough>Lebanon</strikethrough> Hezbollah have been firing across the border since an October 8th strike against Israel in 2023..." etc.

That is a more complete & accurate description.