Why isn't it helpful to focus on our past to help us with our emotional difficulties, especially as Christians? For one, focusing on the past keeps us in bondage to the past. This is why we are told by Paul that we should be ‘forgetting those things which are behind and reaching forth unto those things which are before, (to) to press towards the mark for the prize of the high calling of God in Christ Jesus.’ (Phil. 3:13,14)

How can we fulfill this spiritual goal if we spend time analyzing and gaining supposed insight into what our parents and others have done to hurt us when we were children?

In addition, God tells us that ‘if any man be in Christ he is a new creature: all things are passed away; behold all things are become new (2 Cor. 5:17). If we are truly born again, we must realize that whatever we experience when we were children is now ‘passed away.’

This undue focus on childhood can prevent us from developing our new lives in Christ- just what Satan desires. This is why we are admonished to ‘cast out of the mind the dangerous obtrusive theories which, if entertained, will hold the mind in bondage so that the man shall not become a new creature in Christ.” [EGW, Mind, Character and Personality, Vol.2, p.769]. Could such theories include those from the secular psychology world? I believe the answer is yes!
(Magna Parks, Christians Beware, 14-15)