Genesis 31:6 in the World English Bible
You know that I have served your father with all of my strength.
Context
5 And said unto them, I see your father’s countenance, that it is not toward me as before; but the God of my father hath been with me.
6 And ye know that with all my power I have served your father.
7 And your father hath deceived me, and changed my wages ten times; but God suffered him not to hurt me.