John Gill Commentary Genesis 31:42

"Except the God of my father, the God of Abraham, and the Fear of Isaac, had been with me, surely now hadst thou sent me away empty. God hath seen mine affliction and the labor of my hands, and rebuked thee yesternight." — Genesis 31:42 (ASV)

Except the God of my father, the God of Abraham, and the fear of Isaac, had been with me

One and the same God is meant, who was the God of his father Isaac, and before him the God of Abraham, and now the fear of Isaac, whom he feared and served with reverence and godly fear, being at this present time a worshipper of him: now Jacob suggests, that unless his father's God had been on his side, and had protected and preserved him, as well as before blessed and prospered him.

surely you had sent me away now empty

coming with such force upon him, he would have stripped him of all he had, of his wives and children, and servants and cattle.

God has seen my affliction, and the labour of my hands

what hardships he endured in Laban's service, and what pains he took in feeding his flocks.

and rebuked [you] last night

in a dream, charging him to say neither good nor evil to Jacob, which he himself had confessed, (Genesis 31:29) .