Charles Ellicott Commentary Genesis 30:27

"And Laban said unto him, If now I have found favor in thine eyes, [tarry]: [for] I have divined that Jehovah hath blessed me for thy sake." — Genesis 30:27 (ASV)

I have learned by experience. —Heb., I have divined. The verb means, to speak between the teeth; to mutter magical formulas. Others wrongly suppose that it signifies “to divine by omens taken from serpents;” and some imagine that Laban had consulted his teraphim. Words of this sort lose, at a very early date, their special meaning, and all that Laban means is—“I fancy,” I conjecture.”

His answer is, however, very much in an Eastern manner. It is courtly and complimentary, but utterly inconclusive. “If now I have found favor in your eyes, I have a feeling that God has blessed me for your sake.” It, of course, suggests that he would be glad if Jacob would remain with him.

In Genesis 30:28 Laban comes to the point, but probably this was reached by many circuitous windings.