Watts 's work attempted to amuse children while Wesley 's attempted to simplify morality for them .
During this time , there were only two models for him to base his children 's hymns on : the works of Isaac Watts and of Charles Wesley .
Isaac Watts 's work attempted to amuse children while Charles Wesley 's attempted to simplify morality for them .
During this time , there were only two models for him to base his children 's hymns on : the works of Isaac Watts and of Charles Wesley .