Abstract: The study sought to determine the extent of parental involvement in Sunday school ministry impact on the spiritual formation of teenagers in Africa inland church Kapropita district church council. The target population was 349 participants. The study used mixed methods with a sample size of 181 using Yaro Yamane formulae. The researcher used simple random sampling to obtain participants who filled the questionnaires, and focus group to complement quantitative research methods. The analysis was conducted using (SPSS) version 23 and QDA miner lite version 2.0 8.