Truth is an objective reality

Therefore, if something is true, its essential nature as truth will not be dependent on who discovers that truth, who explains it, or who applies it to everyday life. The nature of a truth will remain a constant. For example, the truth of “gravity” is not dependent on, nor impacted by who discovered it, or who studies or explains it now. It is an essential truth that has an objective reality of its own.

Truth is not dependent on character

When a scientist of any kind (physical science, social science, behavioral science, etc) makes a discovery about an essential truth about creation or human life, that truth is also not dependent on the character of the scientist themselves, nor their particular belief structures. In fact, sometimes the truth that is discovered causes the scientist to be impacted and not the other way around.

Progressive revelation of truth

God often allows a truth to be discovered over time, and by more than one person. Our participation in discovery appears to be part of the Image of God in us, and one way he allows us to learn and grow. Thus, one person will learn one aspect of a truth, and another person will learn something more. Over time, humanity progresses in its understanding of how God has created the world and human beings.

All truth is God's truth

All are sinful, including Christians, and God uses both Christians and non-Christians to discover and explain truths about his created world, including humanity. This is part of the mercy of God. Just as Scripture says that God brings rain to believers and non-believers, so God has allowed people through history – both Christians and non-Christians – to be his instruments. Thus, it is possible for a non-believer to discover and describe aspects of God’s truth. In the end, as the saying goes, “all truth is God’s truth.” If it is really truth, then it is from God, no matter who discovers it.

Truths about personality structures

God has allowed both Christians and non-Christians to discover truth about human beings – including truths about personality structures. Just as God has allowed many medical researchers to discover things about the human physical nature, so God has allowed many psychologists, sociologists and other researchers to discover things about the nature and development of human beings.

Limited teaching about personality in the Bible

Even though teaching may be limited, this does not mean it is not a true aspect of how God has created human beings.

Not every truth is in the Bible

God has allowed people through history to discover many new things that are not referred to in the Bible at all. Scripture does not cover every topic or area of reality.

Non-biblical truths are still important

Just because something is not mentioned in Scripture does not mean it isn’t true or worthy of our learning. There are many truths we have learned about medical science that aren’t mentioned in the Bible. Does that mean we don’t use antibiotics when we have an infection? Certainly not.

Wisdom is necessary in addition to knowledge

Whether or not Scripture gives detailed instructions for finding our gifts or discovering our personalities does not mean this area of truth is unworthy of our efforts. Knowledge is only one part of what we need. We also need wisdom. Much of Scripture teaches that it is important to have wisdom regarding our lives. God has taught the body of Christ through history (and yes, sometimes even used non-Christians) to show us what constitutes wisdom.

Pursue "double knowledge" to grow in wisdom

Theologians throughout history have noted that “double knowledge” – knowledge of God and knowledge of self – is one of the most important ways to grow in wisdom. Augustine and Calvin specifically called believers to grow in knowledge both of God and of oneself.

Early church does not parallel all situations in current life

Whether or not the early church found “finding one’s gifts” to be a problem is irrelevant. There are many aspects of current life that do not have parallel situations to the early church.