Abstract
In the studies about the origin of G'L which can be translated as “to redeem” or “to stain”, “to contaminate”, it is usually deepened in the Deutero-Isaiah as well as in the Trito-Isaiah. This article intends to do an exegetical analysis of the text, through the Historical-Critical-Literary Method, by describing God as the “redeemer of His people” and as a warrior whose powerful hand will bring justice, and notwithstanding the promise of sending a redeemer to save the people and to establish a new covenant, there will be destruction and calamity beforehand. Those divine interventions are due to the lack of a mediation which can ensure righteousness and justice.