The overflowing cup is not a good thing when you spill your drink and you have to clean up the mess!
The overflowing heart is always a good thing.
When your heart is overflowing with the joy of the Lord, this will bring brightness into the lives of the people you meet.
The spilling of a drink isn’t a good thing.
The spilling over of the joy of the Lord is something very precious. it is something to be treasured.
This is something we must earnestly seek – the overflowing joy of the Lord.

How is our joy in the Lord to be increased?
We must think often of the Lord. We must think of what He has already done for us in this life – “Surely goodness and love will follow me all the days of my life” (Psalm 23:6). We must think of what He will do for us in the world to come – “I will dwell in the house of the Lord forever” (Psalm 23:6).
As we think of Him, let us thank Him. As our thanksgiving increases, our joy will increase.