Responding to the Divine Call is written primarily for priests, seminarians and aspirants who desire to share the vocation, life and mission of Christ. These categories of persons are the primary target of this theological prolegomena. The work inspires the readers to think of the real value of the Catholic priesthood, helping priests and seminarians alike to work towards preserving their vocation, which has faced assiduous challenges during the period of formation spread over several years. The spirituality of this treatise is profoundly Christological and ecclesiological, founded on solid anthropology, dealing with scripture and systematic theology with practical daily life experiences for reference.