Genesis 21:19

Christian Standard Bible Anglicised

Then God opened her eyes,  and she saw a well. So she went and filled the waterskin and gave the boy a drink.

Cross References

Numbers 22:31

Then the Lord opened Balaam’s eyes, and he saw the angel of the Lord standing in the path with a drawn sword in his hand. Balaam knelt low and bowed with his face to the ground.

Genesis 16:7

The angel of the Lord   found her by a spring in the wilderness, the spring on the way to Shur.

Genesis 16:14

That is why the well is called Beer-lahai-roi.  It is between Kadesh and Bered.