The Semantic Domain of YUXH
When we research the signifier YUXH, we find that there are divergent opinions and views about the denotation of this term. BAGD list the following senses (glosses) of YUXH:
(1) Life on earth in its external, physical aspects--breath of life, life-principle, soul of animals (Gen. 9:4; Rev. 8:9).
Under this category, BAGD goes on to say that when the YUXH leaves the body, "death occurs." From there it evidently lives in Hades "or some other place outside the earth" (Rev. 6:9; 20:4).
(2) YUXH can also denote earthly life itself (Mt 20:28). Rev. 12:11 seemingly describes 'loving one's life' (something that the "brothers" mentioned in that self-same verse refuse to do).
(3) YUXH is the seat and center of the inner life of man in its many and varied aspects (Ps. 106:9; Prov. 25:25; Rev. 18:14).
(4) YUXH may also depict the feelings and emotions of humans (Mk 12:30-33).
(5) Lastly, YUXH sometimes conveys the sense of "the seat and center of life that transcends the earthly" (Phaedo 28; Mt 10:28).
So says BAGD. Conversely, Louw-Nida gives us an entirely different picture of YUXH. Based on the semantic domains listed in their lexicon, the soul cannot be an incorporeal "substance" that departs from man at death. That is, it probably is not an entity capable of living in another realm when a man or woman ceases to live "under the sun." Here are the semantic fields listed by Louw-Nida.
(1) The inner self (26.4). See Phil. 1:27.
(2) Life (23.88).
(3) A person (9.20).
(4) A living creature (4.1). Cf. Rev. 16:3.
None--I repeat, none--of the fields of meaning listed by L-N suggest that the NT teaches about an immortal soul. This observation is in line with what I have noted in my personal Bible reading, and it appears to be in line with what the scriptural literary corpus teaches. Even the Grammar of Septuagint Greek (by Conybeare and Stock) notes that the Septuagintal phrase KATA THN YUXHN hEAUTOU can be rendered "for his life." This is not apodictic proof, but all of these little details add to the case for those who do not believe in an immortal soul. Furthermore, we need to consider L-N and their remarks about PNEUMA.
Louw-Nida on PNEUMA Listed by Their Semantic Domains
(12.18) The Holy Spirit.
(12.33) Spirit, in general (a supernatural being). Cf. John 4:24
(12.37) Evil spirit.
(12.42) A ghost (Luke 24:37). But read this information carefully.
(26.9) Inner being.