In theology, for example a ‘Dualist’ is someone who believes that Good and Evil—or God and the Devil—are independent and more or less equal forces in the world. This is totally incorrect. There is God. PERIOD. The devil or Satan is not equal to or equivalent to God. He is a created being such as Angels.
In the philosophy of mind, dualism is the theory that the mental and the physical—or mind and body or mind and brain—are, in some sense, radically different kinds of thing. We are not a body with a mind, or a body with a soul. We are a Spirit that lives in a body and has a soul.
The above belief systems would have you believe that animals do not have a spirit. Rubbish. If the Spirit leaves the body the body dies. However it is true that animals do not have a soul.
A person who’s soul has left their body is called a Zombie. Do they exist? If you get out of the USA and visit 3rd world countries where the spirit world is more real than the natural physical world you would believe it.
What does the Bible say about our triune natures?
It’s true that we were all born sinners (Ps. 51:5) and had the nature of the devil working in us (Eph. 2:2-3).
But when we came to Christ and received salvation, we became a new person in the spirit.
If any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new. 2 Corinthians 5:17 This isn’t talking about your body. If you were a man before you accepted Christ, you were still a man afterwards. Your body didn’t change. And your soul, which is what the Bible calls the mental-emotional part of you, didn’t automatically change either. It’s subject to change, but you have to renew your mind to experience change in your mind and emotions. But in the spirit, you became a brand-new species of being. Your spirit is totally new. There isn’t an old sin nature left in you.
According to the Bible, mankind is distinct from all the rest of creation, including the animals, in that he is made in the image of God.
As God is a tripartite — Father, Son and Holy Spirit — so man is three parts — body, soul and spirit. In the most explicit example from Scripture of these divisions, the Apostle Paul writes:
Now may the God of peace Himself sanctify you entirely; and may your spirit and soul and body be preserved complete, without blame at the coming of our Lord Jesus Christ (1 Thessalonians 5:23 NASB).
Man is made up of physical material, the body, that can be seen and touched. But he is also made up of immaterial aspects, which are intangible — this includes the soul, spirit, intellect, will, emotions, conscience, and so forth. These immaterial characteristics exist beyond the physical lifespan of the human body and are therefore eternal.
These immaterial aspects — the spirit, soul, heart, conscience, mind and emotions — make up the whole personality. The Bible makes it clear that the soul and spirit are the primary immaterial aspects of humanity, while the body is the physical container that holds them on this earth.
The Body (Greek, “soma”) Definition: body, flesh; the body of the Church.
This is the entire material or physical structure of a human being — it is the physical part of a person. The Apostle Paul, writing to the Romans again connects the body, the mind (soul) and the spirit.
Therefore I urge you, brethren, by the mercies of God, to present your bodies a living and holy sacrifice, acceptable to God, which is your spiritual service of worship. And do not be conformed to this world, but be transformed by the renewing of your mind, so that you may prove what the will of God is, that which is good and acceptable and perfect (Romans 12:1-2 NASB).
For you have been bought with a price: therefore glorify God in your body (1 Cor. 6:20).
The Soul (Greek, “psyche”) Definition: (a) the vital breath, breath of life, (b) the human soul, (c) the soul as the seat of affections and will, (d) the self, (e) a human person, an individual.
Genesis 2:7 states that Man was created as a “living soul.” The soul consists of the mind (which includes the conscience), the will and the emotions. The soul and the spirit are mysteriously tied together and make up what the Scriptures call the “heart.”
The writer of Proverbs declares, ” Watch over your heart with all diligence, for from it flow the springs of life.” (Prov. 4:23 NASB). We see here that the “heart” is central to our emotions and will.
But a natural (psuchikos — soulish) man does not accept the things of the Spirit of God, for they are foolishness to him; and he cannot understand them, because they are spiritually appraised (1 Cor. 2:14 NASB).
Paul, looking intently at the Council, said, “Brethren, I have lived my life with a perfectly good conscience before God up to this day” (Acts 23:1 NASB).
The Spirit (Greek ” Pneuma”) Definition: wind, breath, spirit.
In Numbers 16:22, Moses and Aaron, “…fell upon their faces and said, ‘O God, God of the spirits of all flesh, when one man sins, will you be angry with the entire congregation?'” This verse names God as the God of the spirits that are possessed by all humanity. Notice also that it mentions the flesh (body) of all mankind, connecting it with the spirit.
Another key verse that describes the separation between soul and spirit is Hebrews 4:12:
For the word of God is living and active and sharper than any two-edged sword, and piercing as far as the division of soul and spirit, of both joints and marrow, and able to judge the thoughts and intentions of the heart (Heb. 4:12 NASB).
We see in this passage of Scripture that the soul and spirit can be divided — and that it is the Word of God that pierces our heart to bring the division of soul and spirit, something that only God can do.
As human beings, we live eternally as a spirit, we have a soul, and we dwell in a body.
The Triune Nature of man In depth study.