Purpose: This study investigates the relationship between community building and spiritual growth within Pentecostal Churches in the Nairobi metropolitan counties of Kenya, focusing on the Pentecostal Evangelical Fellowship of Africa (PEFA), Kenya Assemblies of God (KAG), and Full Gospel Churches of Kenya (FGCK) under the National Council of Churches of Kenya (NCCK). Grounded in servant leadership, empowerment, and spiritual leadership theories, the research combines quantitative and qualitative methods to explore how servant leaders facilitate community building and its impact on church growth. Methodology: The study was guided by servant leadership, empowerment and spiritual leadership theories. The study was conducted across multiple Pentecostal denominations within the Nairobi Metropolitan counties, including Nairobi, Kajiado, Muranga, Kiambu, and Machakos in Kenya. Data collection involved 333 church leaders and members, with 173 from PEFA, 80 from KAG, and 80 from FGCK, resulting in a response rate of 91%. Additionally, two discussion groups comprising pastors and elders from PEFA and KAG churches in Kajiado County were interviewed using an interview guide, totaling 17 members. The total response rate of church leaders and members was 304 (91%). The descriptive cross-sectional survey research design and exploratory designs were adopted for data collection and analysis where respondents provided relevant data. The research was anchored on the pragmatism philosophy. Quantitative data was analyzed using descriptive statistics, correlation and regression analysis, where Statistical Package for Social Sciences (SPSS) version 29 was used. Thematic analysis was employed in analyzing qualitative type of data. Purposive and stratified random sampling techniques were employed to select the sample, ensuring representation of subgroups within the population. This approach facilitated efficient and cost-effective data collection while maintaining the integrity of the study's findings Findings: Data collected from 304 respondents, including pastors, elders, and members, reveals a significant positive association between community building and spiritual growth, with volunteer services rating relatively low. The results showed a positive significance of community building in affecting church spiritual growth. The study findings in all the three models: Model summary, ANOVA and Coefficient confirm the significance of community building in church spiritual growth. The correlation coefficient results yielded a positive relationship of 0.580. However, descriptive statistics on mean scores of how respondents views the practice of community building in their churches, the sub variable of voluntary community services was ranked the lowest (3.7) amongst the other constructs. Nevertheless, there is a need for enhancement of voluntary services by the Pentecostal churches in areas such as health, free cleaning and training services to give back to the community. When church leadership participate in welfare activities such as helping the vulnerable in society, this positively affects church growth both spiritually and numerically. The findings emphasize the importance of enhancing volunteer engagement to foster both spiritual and numerical church growth. This study contributes to theoretical understanding and practical implications for Pentecostal church settings, addressing research gaps and advocating for servant leadership practices that empower church members and promote community building for holistic church growth.Contribution to Theory, Policy and Practice: The study supported servant leadership, empowerment and spiritual leadership theories. Servant leaders play a crucial role in empowering of church members through community building causing effect on church growth. The study revealed and filled a number of conceptual, theoretical, contextual and empirical glaring research gaps in area of servant leadership attribute of community building and church spiritual growth. The most noticeable gap is the contextual gap where many studies on church growth only delved on numerical growth and leaving out spiritual growth of which this study addressed. The study also revealed a gap in volunteer services with a mean of 4.1. Pentecostal churches therefore need to put more efforts to improve volunteer services as well as promotion of spiritual formation so as to enhance church spiritual growth.
