And the Lord said to Jacob, "Return to the land of your forefathers and to your birthplace, and I will be with you." So Jacob sent and called Rachel and Leah to the field, to his flocks. And he said to them, "I see your father's (Lavan's) countenance, that he is not disposed toward me as he was yesterday and the day before, but the God of my father was with me. (Bereishis 31 - 3,4,5)

It appears from these verses that if Yaakov felt Lavan was happy with him he would have stayed. Why didn't Yaakov just tell his wives that HaShem said to return to Israel? The Saba M'Klem explains that one's fear of G-d is precious object and should not be used in places where one does not need to expose it. We should strive to do things as naturally as possible with simplicity and modesty. If we expose our inner world too much we can destroy it. This is why Yaakov brought the natural explanation for why it was time to leave.

Our inner connection to our Creator can be a burning flame while our outer actions can be humble and unassuming.