I applied mine heart - I cast about, סבותי sabbothi, I made a circuit; I circumscribed the ground I was to traverse; and all within my circle I was determined to know, and to investigate, and to seek out wisdom, and the reason of things. Has man reason and understanding? If so, then this is his work. God as much calls him to use these powers in this way, as to believe on the Lord Jesus that he may be saved; and he that does not, according to the means in his power, is a slothful servant, from whom God may justly take away the misemployed or not used talent, and punish him for his neglect. Every doctrine of God is a subject both for reason and faith to work on.
To know the wickedness of folly, even of foolishness and madness -
"And my own heart, with scrutiny severe,
By far the harder task survey'd; intent
To trace that wisdom which from heaven descends,
Fountain of living waters, and to explore
The source of human folly, whose foul streams
Intoxicate and kill."