1987 Constitution of the Philippines
Section 5. Before they enter on the execution of their office, the President, the Vice-President, or the Acting President shall take the following oath or affirmation:
"I do solemnly swear (or affirm) that I will faithfully and conscientiously fulfill my duties as President (or Vice-President or Acting President) of the Philippines, preserve and defend its Constitution, execute its laws, do justice to every man, and consecrate myself to the service of the Nation. So help me God." (In case of affirmation, last sentence will be omitted.)