WLC Q.132: What are the sins of equals?
The sins of equals are, besides the neglect of the duties required, (Rom. 13:8) the undervaluing of the worth, (2 Tim. 3:3) envying the gifts, (Acts 7:9, Gal. 5:26) grieving at the advancement or prosperity one of another; (Numb. 12:2, Esth. 6:12–13) and usurping pre-eminence one over another. (3 John 9, Luke 22:24)