John MacArthur writes about the clarity of the Bible in his chapter in Preach the Word.  Let me quote him here – not new information (I hope), but important information well worthy of our pondering:

The student of Scripture need not fear that its message is unknowable.  Rather, he can rejoice in knowing that God revealed himself and his plan of salvation in a way that men can understand.  Not only does the Scripture repeatedly claim that God revealed what is written within its pages (over 2,000 times in fact), it also describes itself as that which gives light (Ps. 119:105; 2Pet. 1:19a), is profitable (2Tim. 3:16-17), explains salvation (2Tim. 3:15b), addresses common people (cf. Deut. 6:4; Mark 12:37; Eph. 1:1; 1Cor. 1:2), can be understood by children (Deut. 6:6-7; Eph. 6:4; 2Tim. 3:14-15), and should be used to test the validity of religious ideas (Acts 17:11; cf. 2Cor. 10:5; 1Thess. 5:21-22). It is the truth (John 17:17) that sets men free (John 8:31-36).  Thus, to deny the clarity of Scripture is to call into question not only the Bible’s own self-claims, but also God’s ability to communicate clearly.

Let’s make sure these truths are fresh in our hearts.  It’s easy to begin with strong confidence in the Word, only for it to fade over time.  Is it time to refresh and renew our understanding of and commitment to the clarity and power of God’s Word?

Let’s also make sure we don’t undermine our listeners’ confidence in the Bible.  There are certainly parts that are harder to understand, the Bible itself acknowledges that (2Pet. 3:16).  But the main message of the Bible is clear for any who will read it . . . so let’s encourage them to do just that!