Man's greatest happiness!
"For God did not call us to be impure, but to live a holy life!" 1 Thessalonians 4:7
Man's holiness is now his greatest happiness.
In Heaven, man's greatest happiness will be his perfect holiness!
"Let him who does wrong, continue to do wrong;
let him who is vile, continue to be vile;
let him who does right, continue to do right;
and let him who is holy, continue to be holy."