1987 Constitution of the Philippines
Section 6. The State shall apply the principles of agrarian reform or stewardship, whenever applicable in accordance with law, in the disposition or utilization of other natural resources, including lands of the public domain under lease or concession suitable to agriculture, subject to prior rights, homestead rights of small settlers, and the rights of indigenous communities to their ancestral lands. The State may resettle landless farmers and farmworkers in its own agricultural estates which shall be distributed to them in the manner provided by law.