Psalm 16:11 NIV
You make known to me the path of life;
    you will fill me with joy in your presence,
    with eternal pleasures at your right hand.

John 15-9-11 NIV
As the Father has loved me, so have I loved you.
Now remain in my love. 
If you keep my commands, you will remain in my love,
   just as I have kept my Father’s commands and remain in his love. 
I have told you this so that my joy may be in you and that your joy may be complete. 

Joy is the settled assurance that God is in control of all the details of my life,
   the quiet confidence that ultimately everything is going to be alright
   and the determined choice to praise God in every situation.

Rick Warren