You wouldn't think John could cram so much into thirteen verses, but he did just that.  He addressed four main thoughts about the Christian life.

1.  He affirmed that the truth is critical to Christians and that we must know for sure what the truth is.

2.  He affirmed that love is a commandment.  We must love each other.

3.  He affirmed that doctrine is imperative in the life of believers and that we should know exactly what the doctrine of Christ Jesus is.  We must be personally informed about scripture.

4.  He affirmed that we should not receive or encourage interaction with those who would pervert the simple gospel.  Don't receive deceivers.

The new Christian is at the mercy of charlatans who seek to confuse them.  We must learn, learn, learn what the Bible says so that we know what the truth is.  All scripture is inspired by God.

There are those who know not that they know not.  Teach them.

There are those who know that they know not.  These people may not care and won't listen.

There are those that know not that they know.  They need assurance, encouragement and leadership.

There are those that know that they know.  Follow them.  People like the apostle John.

I hope you know what you know for sure.  I hope you are a Bible reader.