All proceeds from the "2 Unite All" album will go towards funding humanitarian aid and workplaces for Palestinians, as well as to international projects promoting peace.
The artists who contributed to the album include System of a Down frontman Serj Tankian, Police drummer Stewart Copeland, Def Leppard drummer Rick Allen and The Cure's Porl Thompson.
"Although I am sure both the Palestinian and Israeli people would benefit enormously from a just and fair two-state agreement based around the '67 borders, we have watched the Palestinians subjected to more and more suffering for far too long, especially in Gaza," Gabriel said in a statement.
"Meanwhile, their long-held land is repeatedly stolen by force for illegal settlements."
The British musician went on to clarify, "I am not and have never been anti-Israeli or anti-Semitic; I am anti-Israeli government policy, anti-injustice, anti-oppression and anti-occupation.
“There is clearly a growing movement around the world willing to speak out, including my own country’s parliament. I am happy to be one of these voices now asking the Israeli government, 'Where is that two-state solution you have so long said you wanted?' and more simply, saying, 'Enough.'"
In the mid 1980s, he began supporting different human rights organizations, and last year he joined other British artists in signing a petition against the Israeli government's policy in the territories.