And God opened her eyes, and she saw a well of water; and she went, and filled the bottle with water, and gave the lad drink. God opened her eyes - These words appear to me to mean no more than that God directed her to a well, which probably was at no great distance from the place in which she then was; and therefore she is commanded, Genesis 21:18, to support the lad, literally, to make her hand strong in his behalf - namely, that he might reach the well and quench his thirst.
Related Commentaries of Genesis 21:19
Genesis 21:19
19 And God opened her eyes, and she saw a well of water; and she went, and filled the bottle with water, and gave the lad drink.