This is the lecture which was presented at the seat of the Polish parliament on the 15th of April 2011 on the occasion of the beatification of John Paul II. The lecture contains two groups of issues. The first group concerns the prerogatives on which the Pope John Paul II took a voice in matters of politics. The second group includes the major problematic topics in his many speeches addressed to the politicians. The Pope pointed out that politicians in their activities should be guided by the principle of the common good of the human being, the principle of subsidiarity, solidarity, justice and protection of human rights.