The original Arabic version of "Shake Israel's Security" has long been a popular anthem of the Islamist movement's military wing, the Ezzedine al-Qassam Brigades.
Now the Hebrew translation is on the brigades' YouTube site.
Israel and Hamas have since Tuesday been locked in a spiralling war across the border between southern Israel and the Gaza Strip, where Hamas has its power base.
Today, air strikes on the coastal territory claimed their 100th Palestinian life as Hamas pounded central Israel with rockets, sending thousands fleeing into bomb shelters.