During a conversation with my friend, he mentioned that we have BODIES, which we all understand, and he said we have SOULS and SPIRITS and he quoted
1 Thess 5:23
May the God of peace himself make you perfectly holy and may you entirely, spirit, soul, and body, be preserved blameless for the coming of our Lord Jesus Christ.
I have heard of this Trichotomy (taken from here ):
This Pauline system, presented to a world already prepossessed in favour of a quasi-Platonic Dualism, occasioned one of the earliest widespread forms of error among Christian writers – the doctrine of the Trichotomy. According to this, man, perfect man (teleios) consists of three parts: body, soul, spirit (soma, psyche, pneuma). Body and soul come by natural generation; spirit is given to the regenerate Christian alone.
But this doesn’t help me explain it well, just that it is wrong to think this. Any help would be nice.