Sometimes when asking a question, one needs to be aware of the assumptions lying behind the question. The assumption behind this question, regardless of who originally framed it, is that there is such a thing as an immortal soul which outlives ourselves in the afterlife. This is an ancient Greek concept and it doesn’t quite fit the Biblical use of the term “soul” or ἡ ψυχή .
A quick check in lexicons of Biblical Greek reveals that the word is multi-valent; meaning it can carry a range of meanings which must be determined by the context. I cannot think of any Biblical example where having a soul is used as a precondition for salvation. Perhaps it is worth mentioning that the Greek word for soul is the word from which we derive “psychology”, a derivation that points to “soul” meaning “mind”.
Should one persist in believing that one has to have a soul to be saved, it is worth considering Revelation 8:9, where the Greek text of the book of Revelation refers to creatures in the sea who have souls. It is usually translated as “have life”.
The question about the existence of souls parallels the question about sentient beings. Are animals sentient beings? My dog likes to steal my socks. I know that she knows that is not permitted, because the minute she grabs a sock she runs for her life. Does that mean she knows the difference between good and evil?
The question about whether hominins had souls is overtaken and made irrelevant by St Paul’s assertion …
For the creation waits in eager expectation for the children of God to be revealed. For the creation was subjected to frustration, not by its own choice, but by the will of the one who subjected it, in hope that the creation itself will be liberated from its bondage to decay and brought into the freedom and glory of the children of God.We know that the whole creation has been groaning as in the pains of childbirth right up to the present time. (Rom 8:19-22 NIV)
This assertion makes deliberation, over the possession of a soul as necessary for salvation, as irrelevant as pontificating about how many angels could fit on the head of a pin. Having or not having a dubious thing called a “soul” does not seem to factor in here at all.
Just because Neanderthals were built like a team of Rugby players doesn’t mean they weren’t candidates for salvation. As for Australopithecus??? Well, Australopithecus was part of Creation, and Creation will be saved, according to St Paul.
As for being created in the image of God, we might have to wait until the theologians stop arguing among themselves over what that means.