The study explores the relationship between employee affective commitment and resistance to changes in an organization using FBNQuest Merchant Bank Ltd as a study. For resistance to changes, the study focused on routine seeking, emotional reaction, short-term focus and cognitive rigidity, and how they relate to employee affective commitment. The study adopted a cross-sectional survey research design. Primary data were collected using a structured questionnaire. Simple random sampling technique was used to select one hundred and eighty-five respondents out of which one hundred and fifty-three responses were valid for the data analysis. The data obtained were analysed using the Statistical Package for Social Sciences (SPSS). Pearson Correlation analysis was used to predict the relationship between independent and dependent variables. The findings indicated on employee affective commitment has a negative and significant relationship with routine seeking and short-term focus only. In conclusion, affective commitment fosters acceptance of the change, which in turn fosters a commitment to the change. The study recommended that FBNQuest Merchant Bank Ltd should periodically conduct a survey to determine the commitment level of employees. This helps to understand and explain certain behaviours of employees towards the organizational commitment.