Socrates said "the unexamined life is not worth living for human beings". Self examination an important part of living as an authentic Christian.
Psalms 119:59-60 shows us that David practiced self-reflection or examination.
Lamentations 3:40 says "let us test and examine our ways, and return to the Lord!"
This is a call to think about our ways and compare them with God's directives. We are to take the right action by returning to God.
Regular self-reflection is essential for any Christian who does not want to experience stunted spiritual growth. This is because, unlike physical growth in height, spiritual growth is a deliberate process.