Thanks for your question!
To view the stock languages available on your device go to Settings>Language and Input>Language. Unfortunately Hebrew is not listed as a language option. Note: This is for the default Samsung keyboard. If you are using a third party keyboard we cannot assist you since we do not support third party applications.
If you need additional assistance or information, please just write us again on this forum or you can also try calling Samsung Customer Support at our toll free number 1-888-987-4357 between the hours 7:00 a.m. to 9:00 p.m. Monday through Friday, and 9:00 a.m. to 6:00 p.m. Saturday, CST. From there, a representative can assist you further!
You can also chat live with a support agent by following the link below and clicking on Mobile Phones under Live Chat Support, or feel free to ask us on Twitter @SamsungSupport for speedy responses in the U.S.
Chat Support: http://goo.gl/ZALJm
Thanks and have a great day!