'Pupil' in the Bible

The Lord found him in a desolate land, in an empty wasteland where animals howl. He continually guarded him and taught him; he continually protected him like the pupil of his eye.

Protect me as you would protect the pupil of your eye! Hide me in the shadow of your wings!

For the Lord who rules over all says to me that for his own glory he has sent me to the nations that plundered you -- for anyone who touches you touches the pupil of his eye.