25KJV: I applied mine heart to know, and to search, and to seek out wisdom, and the reason of things, and to know the wickedness of folly, even of foolishness and madness:
Geneva: (7:27) I haue compassed about, both I and mine heart to knowe and to enquire and to search wisedome, and reason, and to knowe the wickednesse of follie, and the foolishnesse of madnesse,