Tertullian

“ Come now, let us suppose Matter to be evil, nay, very evil, by nature of course, just as we believe God to be good, even very good, in like manner by nature. Now nature must be regarded as sure and fixed, just as persistently fixed in evil in the case of Matter, as immoveable and unchangeable in good in the case of God. Because, as is evident, [1] if nature admits of change from evil to good in Matter, it can be changed from good to evil in God. ”

“ Eternity, however, cannot be lost, because it cannot be eternity, except by reason of its immunity from loss. For the same reason also it is incapable of change, inasmuch as, since it is eternity, it can by no means be changed. ”