The word is meant to be interpreted correctly through much study, and the guidance of God's Holy Spirit. Therefore, if you can benefit your fellows, how is this detrimental toward God's gracious purpose for us. Why would you hold back from us your deeper insights? The word declares "study to show thyself approved unto the Lord". What purpose is this needful? So you can boast within yourself "I know the meaning of the word", but I will to hide it to myself. Remind me not to be on an abandon Island with you, and you alone have access to the food. You know that's what God's word is ..it is spiritual food for all men....especially to the brethren (generically speaking)! Therefore, if you choose to hide from the needful your insight on God's word, you choose to starve your fellow man of spiritual nourishment. Why?..Apparently to boast within yourself, absent any evidence of your proclamation.