“Therefore, as ye abound in every thing, in faith, and utterance, and knowledge, and in all diligence, and in your love to us, see that ye abound in this grace also.”  2 Corinthians 8:7

Abound in knowledge; let this statement “me, I don’t know Bible” be found far away from you! If you don’t know, it is folly to talk about your lack of knowledge with gusto, when something isn’t right in your life, seeing you are the righteousness of God, you ought to set it right!
If you ‘don’t know bible’, fix it and begin to know, thank God knowing bible doesn’t entail undergoing a brain surgery, it just takes deciding to read the Bible and actually reading it.
Gone are the days of “I don’t understand bible”, you have a sound mind and Christ has been made unto you wisdom! There’s no excuse anymore, moreso:
“God is faithful, by whom ye were called unto the fellowship of his Son Jesus Christ our Lord.”  1 Corinthians 1:9
Meaning the one you are trying to understand, you have been made exactly like him so you can fellowship with him, the question of whether you understand or you don’t has become non-existent.
Then he says, abound in diligence; the word diligence there means ‘speed’, ‘detail’, in other words paying attention to details with speed. In short, he says abound in excellence and efficiency. Be more efficient in your life, your response to situations should be accurate, precise and fast!
In your walk with God, he rewards diligence:
“…for he that cometh to God must believe that… he is a rewarder of them that diligently seek him.”  Hebrews 11:6
Deciding to improve in your walk with him and be more efficient in your expressing his life and glory would be more beneficial to you!