Psalms 17:8

8. As the apple of the eye The pupil, or centre of the eye, a beautiful phrase, denoting a place of great safety, carefully guarded. The Hebrew reads: “Keep me as the little man, the daughter of the eye,” called so because the miniature picture of the man is seen in the door, or opening, of the eye. Mendelssohn reads, “The offspring of the eye;” and Kimchi, “The dark part of the eye, because there is seen in it the image of a man.” (See Deuteronomy 32:10; Lamentations 2:18; Zechariah 2:8.)

Shadow of thy wings The figure changes, but the idea of complete safety is preserved. Psalms 91:4; Matthew 23:37