Ewer's book The Operation of the Holy Spirit

Bishop Eddie recently introduced me to the Rev'd Dr F C Ewer's book The Operation of the Holy Spirit.
The following is from page 35, as he reflects on the stories and songs of the Hebrew Testament and the influence of the Holy Spirit:

Who shall lay the measures of the Old Testament, or enter into the springs thereof? And who shall bind its sweet influences?
Consider, first, the diversity that is apparent on its surface. The Pentateuch moves with an epic cadence; Joshua rings with heroic numbers; and Judges sustains the martial strain; but in Ruth, the song sinks to a gentle pastoral, soon to break out as a sonnet in Esther, then swell to a drama in Job, and heave like a restless sea in the lyric Psalms.