Genesis 30:27

“And Laban said unto him, I pray thee, if I have found favour in thine eyes, tarry, etc.] One would think he could not expect to have much from him, by his treatment of him; but he craftily cajoles him in this fawning, flattering way, in order to gain a point, and begs of him, in a very humble and suppliant manner, if he had any love for him, that he would not depart from him, but stay with him, which he should take as a great favour; for he could not insist upon it, as bound in duty, or as a point of justice: for I have learned by experience; by the observations made in the fourteen years past; that the Lord hath blessed me for thy sake: Laban had so much religion as to ascribe the…”

“Laban said . . . I have learned--His selfish uncle was averse to a separation, not from warmth of affection either for Jacob or his daughters, but from the damage his own interests would sustain. He had found, from long observation, that the blessing of heaven rested on Jacob, and that his stock had wonderfully increased under Jacob's management. This was a remarkable testimony that good men are blessings to the places where they reside. Men of the world are often blessed with temporal benefits on account of their pious relatives, though they have not always, like Laban, the wisdom to discern, or the grace to acknowledge it.”

“30:27 I have become wealthy: God had prospered Laban through Jacob’s presence (see 22:18). Laban may have looked for omens, or simply have perceived what was happening. Since dark-colored sheep (30:32) were rare, a large number of them was considered an omen of God’s blessing.”