The Word of God is Profitable
In our secular lives we appreciate activities and projects which are profitable. Things that are not profitable are a waste of time, talent, and resources.
In our spiritual lives, God would have us to know that reading and studying His Word is always profitable. "All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: that the man of God may be thoroughly furnished unto all good works" (2Tim 3:16-17).