Pondering

Read the following excerpts, then my question. 
From Bill Gillham's book "Lifetime Guarantee: Making your Christian Life Work and What to Do When It Doesn't" pp 50-51...
"If you have accepted Jesus as your Lord and Savior, the Father has accepted you completely.  Performance has nothing whatever to do with it.  Performance is important to God, yes, but it has to do with winning His approval, not His acceptance,.  It has to do with hearing Him say, 'Well done, good and faithful servant' one day at the Judgement Seat of Christ, but it has nothing to do with hearing Him say, 'I accept you as My beloved child' (John 1:12)"
"God, however, uses Christ's finished work for us as the criterion for acceptance.  Thus, any Christian who is striving for acceptance is fighting a battle that's already been won."
 
So - what is the difference between acceptance and approval?  How do I know when I am seeking God's acceptance and when I am seeking His approval?