Don’t they have Patriot and other batteries for longer range Scuds and the like?
Patriots and the Arrow missile is for long and medium rande ballistic missiles.
They have different systems for short range, medium range and long range ballistic missiles.
Everything from mortars to warheads launched from Iran.
The big system for incoming ballistics is probably nuclear armed. It’s easier to take out an incoming missile with a nuclear blast than any other way.
If anyone sends over a chemical or biological missile then Israel will probably depend on a spread of neutron weapons to take out the areas that launched them...picture everything dead in large areas of south Lebanon. This would probably be the start of a world war.