At the 70th session of the UN General Assembly, Najib Tun Razak, the Prime Minister of Malaysia, made a speech with the main idea of Moderatism. This paper aims to analyze the intertextuality strategies used in this international political speech in order to construct a positive Malaysian image. Analysis of intertextuality could reveal the underlying ideology and power relations in discourse and its linguistic impact on the society. The results show that most of the intertextuality in the speech consists of quotations of the Islamic allusion which is aligned with the national position and political inclination of Malaysia; the citations of Jewish and Confucius culture suggest Malaysia’s tolerance and respect towards religion and culture variety, and reinforce its political standing of approving Moderatism and maintaining world peace.