'Sweetness' in the Bible

But the fig tree said to them, ‘Should I give up my sweetness and my good fruit, and go to wave over the trees?’

So he said to them,“Out of the eater came something to eat,And out of the strong came something sweet.”And they could not solve the riddle in three days.

Oil and perfume make the heart glad;So does the sweetness of a friend’s counsel that comes from the heart.

All of his life he also eats in darkness [cheerlessly, without sweetness and light], with great frustration, sickness, and anger.