Urgently, incessantly, Jesus drew people to God.  Seek first the kingdom and righteousness of God, he said (Matt. 6:33).  For this we were made.  Nothing else satisfies the longings of the heart.  Nothing but the source of joy can give us joy.
So Jesus invites us to follow him, to hunger and thirst for God,
and to feast on the goodness that comes from God alone.
– Arthur Simon in How Much Is Enough?

Christian joy is the proper response to the presence of something desirable: God.
– Philip Kenneson

The joy of the Lord will arm us against the assaults of our spiritual enemies, and put our mouths out of taste for those pleasures with which the tempter baits his hooks.
– Matthew Henry

Joy is diminished…by walking at a distance from God. 
If you get away from the fire you will grow cold.
– Charles Spurgeon

Christ being present with you, this is your main joy.  Enjoy the feast for yourselves,
or you will not be strong to hand out the living bread to others.
– Charles Spurgeon

Search the Scriptures diligently, and your joy shall spread and deepen.
– Charles Spurgeon

All the writings of Scripture, doctrinal, experimental, or practical, all have for their object, that which John declares in these words – “that your (our) joy may be full.”
– Charles Spurgeon

Because advertising cultivates the insatiable desire for the new, the improved,
the bigger and better, we find ourselves all but incapable of experiencing joy
and contentment in our everyday lives.
– Philip Kenneson

Fading is the worldling’s pleasure,
All his boasted pomp and show;
Solid joys and lasting treasure
None but Zion’s children know.
– John Newton

There is enough in God to furnish us with matter of joy
in the worst circumstances on earth.
– Matthew Henry

With His great infinite heart He loves me.  It is a conquering thought;
it utterly overcomes us and crushes us with its weight of joy;
it bows us to the ground and casts us into a swoon of ecstasy.
– Charles Spurgeon