The fundamental principle to knowing who we are lies in knowing who God is first. Jesus is the cornerstone of all creation and so should be for our lives. Most of the jaded conception in the mind of who we are lies in the twisted agenda that has been pushed about Jesus.
There are two meanings on which the word "deliver" hinges in the Old Testament. The first is used in a nontheological sense meaning to "deliver over" and then the second usage describes the nature of people delivered.