to turn away or turn back: to send a person or thing away from what it was facing, and so to remove it, put it back, or refuse it
The picture behind this verb is simple and physical: something is facing one way, and it gets turned the other way. Greek builds it from the ordinary verb for turning (στρέφω) plus a prefix meaning "away from," so the direction is part of the word itself. Nearly every use in the New Testament is that one gesture applied to a different thing.
What gets turned varies widely:
- a sword turned back into its place, so the violence stops (Matthew 26:52)
- a nation's guilt turned away from it, so the guilt is gone (Romans 11:26)
- a person turned away from doing wrong, which is what being rescued looks like (Acts 3:26)
- a crowd turned away from its loyalties, and so stirred up (Luke 23:14)
- friends who turn away from a man in prison, and so desert him (2 Timothy 1:15)
So the same word carries both the best and the worst thing that can happen to a person. When God does the turning, what gets turned away is sin, and that is a blessing. When people do it, they are usually walking out on someone who had a claim on them. In most of its appearances the one doing the turning is also the one moving off, and what he turns his back on is a person or a truth: English then needs a stronger verb, such as "reject," "desert," or "refuse to listen."
The direction is what separates this word from its close relatives. Turning toward, not away, is the work of ἐπιστρέφω, the usual word for turning back to God, while plain travel homeward belongs to ὑποστρέφω.