What's the difference between everlasting and sempiternal?

Everlasting

Definition:

(a.) Lasting or enduring forever; exsisting or continuing without end; immoral; eternal.
(a.) Continuing indefinitely, or during a long period; perpetual; sometimes used, colloquially, as a strong intensive; as, this everlasting nonsence.

Example Sentences:

(1) After the war, Auerbach notes mournfully, the standardisation of ideas, and greater and greater specialisation of knowledge gradually narrowed the opportunities for the kind of investigative and everlastingly inquiring kind of philological work that he had represented; and, alas, it's an even more depressing fact that since Auerbach's death in 1957 both the idea and practice of humanistic research have shrunk in scope as well as in centrality.
(2) No species has a sacrosanct right to everlasting life and surely it would be better to die out while living free rather than appear in this endless circus.
(3) We have badly managed a resource believing it is everlasting.
(4) As a child, I accepted that he'd been to the realm of gods, a pure and everlasting place far beyond ordinary reach; rare adventurers such as him might be permitted to visit for a while, but when they left, the mountain would return to its timelessness.
(5) He had been questioning his own church too, specifically its contention that "all who did not know and love Jesus were condemned to everlasting damnation".
(6) Now they say the euro and the European Union are everlasting, but it is not.
(7) We hope this will lead to the release of all prisoners and establish a just and everlasting peace for everyone," he said.
(8) Yarrow, everlastings and birch leaf tea also possessed marked hypoglycemic and glycogen sparing properties.
(9) Charles ended his broadcast by saying: "Finally, I would just like to reinforce a point that I have been trying to make for many years now – that our country is incredibly lucky to have people like yourselves and that we owe you an everlasting debt of gratitude for all that you do and mean to us."
(10) You become aware of a colossal idea,” he wrote after visiting the International Exhibition, showcase of an all-conquering material culture: “You sense that it would require great and everlasting spiritual denial and fortitude in order not to submit, not to capitulate before the impression, not to bow to what is, and not to deify Baal, that is, not to accept the material world as your ideal.” However, as Dostoevsky saw it, the cost of such splendour and magnificence was a society dominated by the war of all against all, in which most people were condemned to be losers.
(11) Triumph sweeps caution away: they think they see Lib Dems vanquished, Labour departing the fray, boundary changes securing everlasting victory.
(12) Investigations into cattle mortalities suspected of being caused by the Woolly Everlasting Daisy (Helichrysum blandowskianum) revealed lesions of marked periacinar liver necrosis, vascular degeneration, widespread haemorrhages and oedema.
(13) What we could do instead is create a story of rising living standards, stronger communities and a more resilient society, embracing the challenge of poverty reduction – with everlasting benefits.
(14) Now it seems to mean sending an everlasting picture or mini-film of a bit of yourself – not usually an elbow – floating out into eternity, for anyone and everyone to see.
(15) The event is the paradigm of the everlasting fight of under-developped countries against powerful colonial metropolis.
(16) Note that eye, ‘tis rheum o’erflows; Pity’s flood there never rose, See those hands, ne’er stretched to save, Hands that took, but never gave: Keeper of Mammon’s iron chest, Lo, there she goes, unpitied and unblest, She goes, but not to realms of everlasting rest!
(17) One is to view it as a fatalistic destiny, bred into the darkest incestuous trends any infant is fighting against, and leading to unavoidable stigmata of everlasting nature.
(18) We have badly managed a resource believing it is everlasting - it isn’t It is bad news for some types of coral that don’t like the heat, and that used to thrive below the warmer layer of water.
(19) If we look at traumatism as a triggering respectively modifying factor it makes clear that we can not postulate an everlasting causation of headache by traumatism, but have to see posttraumatic headache in a fluent transition from trauma-etiology to a constitionally caused personality-etiology.
(20) Some were part of the grain of history and enacted elsewhere without New Labour administrations – notably Scotland and our partners in Europe; while others, including investment in schools and hospitals, were paid for through the private finance initiative, to the everlasting debt of the British taxpayer and generations to come.