Genesis 31:6, 38-40

You know that I have served your father with all my strength.

These twenty years I have been with you; your ewes and your female goats have not miscarried, nor have I eaten the rams of your flocks. That which was torn of beasts I did not bring to you; I bore the loss of it myself. You required it of my hand whether stolen by day or stolen by night. Thus I was: by day the heat consumed me and the frost by night, and my sleep fled from my eyes.