Israel agreed to abide by all UNSC resolutions when it signed the UN Charter. Israel agreed to not colonize occupied territory when it signed the 4th Geneva Convention. Israel agreed to withdraw from W. Bank and Gaza within 5 years of signing the Camp David Accord. Israel agreed to collect taxes for the PA when it signed the Oslo Accords. Israel agreed not to drop cluster bombs on civilians when the U.S. gave them the weaponry.
from the article: U.S. warns Palestinians: Stop leaking content of Quartet talks