Complex sentence: Charnock's theological fame rests chiefly in his "Discourses upon the Existence and Attributes of God", a series of lectures delivered to the members of his congregation; unfortunately, the series cut short by Charnock's death in 1680.
Split into simpler sentences: Charnock's theological competence can be seen in his "Discourses upon the Existence and Attributes of God", a series of lectures delivered to the members of his congregation. Unfortunately, the series cut short by Charnock's death in 1680.