Joy

"Do not sorrow, for the joy of the LORD is your strength." 

Nehemiah 8:10

Just like parents want the best for their children, so does God. His joy is to see His children strong and happy, conquering and blessing others around them.

Thirst

"If anyone thirsts, let him come to Me and drink."

John 7.37

Many people have come to the Lord Jesus with the thirst to get the solution of their personal problems. But the thirst for Him in this passage refers to the permanent Plenitude of the Holy Spirit. Many people want Him but they show lack of thirst. The Plenitude of the Holy Spirit is only for those who are desperately thirsty of Him.