Jeremiah 32:41 (NIV) I will rejoice in doing them good and will assuredly plant them in this land with all my heart and soul.
Psalm 4:7 (NIV) You have filled my heart with greater joy than when their grain and new wine abound.
Psalm 5:11 (NIV) But let all who take refuge in you be glad; let them ever sing for joy. Spread your protection over them, that those who love your name may rejoice in you.
Acts 16:34 (NIV) The jailer brought them into his house and set a meal before them; he was filled with joy because he had come to believe in God--he and his whole family.
Happiness is caused by things that happen around me, and circumstances will mar it; but joy flows right on through trouble; joy flows on through the dark; joy flows in the night as well as in the day; joy flows all through persecution and opposition. It is an unceasing fountain bubbling up in the heart; a secret spring the world can't see and doesn't know anything about. The Lord gives his people perpetual joy when they walk in obedience to him.
Dwight Lyman Moody (1837-1899)