How can I fix a rooted GS4 after a remote wipe crashed the system?

I Have a Rooted Sprint Samsung Galaxy s4. Recently, Thru LookOut Security, My Mobile Security Software, I Attempted to Wipe My Device Thinking It Had Been Lost. I Found the Phone, and Discovered the Phone No Longer Boots, and Seems to Be Wiped of Any OS at All. How can I reinstall an operating system?