The word “psychology” literally means, “study of the soul” (it is made up of two Greek words: ψυχή, psukhē, meaning “soul”; and -λογος – logos, meaning “study of”).
The fact that we are tri-partite (three-part) beings, consisting of “spirit”, “soul”, and “body” is well attested to in the New Testament (cf. 1 Thess. 5:23; Heb. 4:12) and in the writings of the early Fathers (e.g., Irenaeus, Clement of Alexandria, Origen, Gregory of Nyssa, and Basil of Cesaraea).
Jesus identified many psychological issues in his teachings that we now might term “denial”, “defense mechanisms”, “projections”, and “inner healing”. The Apostle Paul was certainly deeply involved in the transformation of the fallen human “soul” and “body” through the power and influence of the “Spirit” of God. There are many additional New Testament examples of psychological teachings, both in the Gospels and the Epistles.
The actual term “psychology” was first used in writing during the Enlightenment of the 16th century. The modern science of psychology is brand new, emerging in Europe in the 1870’s, with its super-hero, Sigmund Freud, starting his work in the 1890’s. I know that seems odd, given that “psychology” is such a familiar and popular part of our secular culture of the late 20th and early 21st centuries. But, as a science, it really is brand new, relatively speaking.
The problem with contemporary secular psychology is that, at most, it only deals with two parts of a human being; the body and, perhaps, parts of the soul. With few exceptions, the secular study of psychology virtually ignores the spiritual aspect of humanity. It suffers the modern bias for what can be observed and measured through the five senses, relegating all else (such as spirit), to the intellectual dumpster of superstition and/or imagination.
And that is why I maintain that modern psychology can only help you “cope” with problems, it cannot “deliver” us from them or “cure” them. Secular psychology only deals with two of the three variables of the equation; our fallen “body” and “soul”. It arrogantly ignores the most important element of our being, the “spirit”. Therein lies the healing cure for these problems; the power of the “Spirit” to transform both the soul and the body to align and conform our entire being to the perfect will of God. Only God can truly heal, cure, and deliver us from psychological afflictions.
This is not “new” news, folks. This is ancient Christian teaching that is largely being ignored or shouted down by contemporary secular “science”.