Genesis 16:13

אתה אל ראי THOU ART A GOD OF SEEING — The word is punctuated with a Chataph Kametz because it is a noun, and the meaning is “a God of seeing” — One who sees the humiliation to which people are subjected by others (Genesis Rabbah 45:10) הגם הלום HAVE I ALSO [SEEN] HERE — This is an exclamation of surprise: “could I have ever imagined that here also — in the wilderness — I would see the messengers of the Omnipresent after I have seen them in Abraham’s house, where I saw them regularly!” You may know that she used to see them there regularly from this: That Manoah saw the angel only once and exclaimed, (Judges 13:22) “We shall surely die”, and she saw angels four times, one after the other, and she showed no fear (Genesis Rabbah 45:7).

וַתִּקְרָ֤א שֵׁם־יְהֹוָה֙ הַדֹּבֵ֣ר אֵלֶ֔יהָ אַתָּ֖ה אֵ֣ל רֳאִ֑י כִּ֣י אָֽמְרָ֗ה הֲגַ֥ם הֲלֹ֛ם רָאִ֖יתִי אַחֲרֵ֥י רֹאִֽי׃

And she called the name of the Lord that spoke to her, Thou God seest me: for she said,