I was just in Israel a month ago and you should be able to use it if activated already.
As soon as I landed I received the following message:
"Welcome to Israel! Estimated roaming charges to make a call is US$4.05/min, to send a text is US$0.93/SMS, & to mobile surf is US$13.45/MB. For assistance, call +6327301212 toll-free using your Globe Mobile. Enjoy your stay!"
Yes,you can use it.
But Roaming charges will be applicable.
If you need to stop Roaming phone signal while visiting abroad,You should keep in mind the following instructions
1.Turn your voicemail off
2.Just switch Data Roaming off with a help of your service provider.
3.Try to access network through Wi-Fi while visiting abroad.
4.You can also avoid roaming by use the local carrier sim card,which is available in that country.Before put local carrier,Make sure your phone is unlocked or not.If it's restricted by some network,try to unlock your phone.For unlocking you can approach your service provider or else try to buy an unlocking service from any one of the online unlocking service provider like ClassicUnlocking.com