The Proper Study of the Christian is the Godhead

But the incomprehensibility of the divine nature is not a reason why we should desist from reverent iniquity and prayerful strivings to apprehend what He has so graciously revealed of Himself in His word.  Because we are unable to acquire perfect knowledge, it would be folly to say we will therefore make no efforts to attain to any degree of it.  It has been well said: Nothing will so enlarge the intellect, nothing so magnify the whole soul of man, as a devout , earnest, continued, investigation of the great subject of the Deity.  The most excellent study for expanding the soul is the science of Christ and Him crucified and the knowledge of the Godhead in the glorious Trinity.  The proper study of the Christian is the Godhead.  the highest science, the loftiest speculation, the mightiest philosophy, which can engage the attention of a child of God is the name, the nature, the person, the doings, and the existence of the great God which he calls his Father.

C.H. Spurgeon

as quoted by Pink, Arthur W.; The Attributes of God; Kindle Edition; page 88