The political practice is at the core of the personal and ecclesial Christian experience. This dynamic has as its absolute the historical faith in JESUS within the execution of popular sovereignty building common good, the separation between Church and State, the prevalence of ethics and law, the realization of the preference option by poor people, the constitution of an authority and the obtaining of minimum political consensus at local, national and international level. The theological ethical background of all this issue from the bible, the ecclesial tradition and the commitment of contemporary Christian community, is the goal of this article.