What is the correct way, according to Catholic teaching, to use the term
"immortal"? Is it right to say that the soul is "immortal" or is
immortality something we gain through Christ. Is the soul "eternal"? I
am thinking that it is right to say that the soul is "eternal" and
spends its eternity either in life or in death i.e. with or without God,
but I am unclear about how to use the word "immortal".
Oftentimes when one thinks of the word immortal, we think of
the Greek gods (small g) of ancient times. However, the definition of
immortal, means to have no ending.
The best answer comes from the "Catechism of the Catholic Church" #366
'The Church teaches that every spiritual soul is created immediately by
God - it is not "produced" by the parents - and also that is is
immortal: It does not perish when it separates from the body at death,
and it will be reunited with the body at the final Resurrection.'
Basically there is no difference in the meaning of Immortal and
Eternal. Both mean without end.