This qualitative descriptive study aimed to explore how faith-based mentors and Black male student mentees from low socioeconomic communities describe their use of social justice principles to engage in social activism in Northern California. Two research questions guided this study. The theoretical foundation for this study was the social justice youth development framework. Social justice youth development theory focuses on how critical consciousness and social action relate and can be helpful while working with Black male students. The sample included 11 faith-based mentors and 8 Black male student mentees from low socioeconomic communities in Northern California. This study used a qualitative methodology and descriptive design to present a rich, detailed description of the perspectives of faith-based mentors and Black male student mentees. The data sources included semi-structured individual interviews with faith-based mentors and two focus groups with Black male student mentees. Themes emerging from the data included mentors cultivating safe spaces for mentees to develop a sense of pride being comfortable to be themselves, mentors providing mentees with opportunities to learn about and engage with adults in positions of power, mentors allowing mentees to be creative and use the resources and tools they were comfortable with to communicate with others, mentors assisting mentees in identifying the issues in their communities that were causing their oppression, mentors empowering mentees to collectively challenge community conditions that are affecting them, mentees describing how they were able to use their voice and engage the systems that needed to be changed and mentees being given the opportunity to work with others and address the issues in their community. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]