Overlap of Mind, Spirit, Soul

Scripture uses a wide variety of language to describe our constituent parts. It talks about our bodies, flesh, hearts, minds, spirits, souls, and many other things. But throughout the centuries, theologians have generally agreed that all those parts can be summarized in terms of two things: a physical part, usually called our “body”; and an immaterial part, typically called our “soul” or “spirit.” For instance, in 2 Corinthians 7:1, Paul wrote:

Let us purify ourselves from everything that contaminates body and spirit, perfecting holiness out of reverence for God.

But Scripture’s teaching on these points is complicated by the diverse vocabulary it uses to describe us.

One of the most common terms is “soul,” which often translates the Hebrew word nephesh or the Greek word psuché. These words generally refer to the entirety of humanity’s immaterial nature, but they sometimes refer to an entire human being, including the physical body. For example, Genesis 2:7 tells us that when God breathed the breath of life into Adam, Adam became a “living soul,” or nephesh.

Another of the most common terms for our immaterial parts is “spirit,” which typically translates the Hebrew ruach or the Greek word pneuma. Both terms often refer to the entire immaterial aspect of human nature, and in this sense, they’re relatively synonymous with the words for soul. However, “spirit” can also refer to a variety of other things, such as “breath,” “wind,” or even an attitude or demeanor, as in the phrase “spirit of timidity” in 2 Timothy 1:7.

Besides these terms, Scripture has many words for various aspects of our immaterial being. For instance, “mind” commonly identifies the seat of our moral, intellectual, and rational thought, as in Romans 7:23. And “heart” sometimes identifies our inner lives, or the immaterial source of our thoughts, will, feelings and emotions, as in 1 Samuel 16:7, and 2 Timothy 2:22. Even the Hebrew term me’eh normally translated bowels, womb or inward parts, refers to our immaterial being in places like Psalm 40:8.

And of course, the Bible also has many other terms for various parts of our immaterial being, including our conscience, desires, reason, thoughts, mind, and a wide variety of emotions. In general, theologians have understood all these parts as belonging to the larger whole we identify as our immaterial soul or spirit.

In Deuteronomy 6:5-6, we learn that the primary expression of the love God required is heartfelt obedience to his commandments:

Love the Lord your God with all your heart and with all your soul and with all your strength. These commandments that I give you today are to be upon your hearts.