1 Nephi 4

 One new thing caught my interest this morning.  As Nephi responded to his brothers that they should not give up in acquiring the brass plate of Laban, he tells them - 

"...Let us go up again unto Jerusalem, and let us be faithful in keeping the commandments of the Lord; for behold he is mightier than all the earth, then why not mightier than Laban and his fifty, yea, or even than his tens of thousands?

2 Therefore let us go up; let us be strong like unto Moses; for he truly spake unto the waters of the Red Sea and they divided hither and thither, and our fathers came through, out of captivity, on dry ground, and the armies of Pharaoh did follow and were drowned in the waters of the Red Sea.

3 Now behold ye know that this is true; and ye also know that an angel hath spoken unto you; wherefore can ye doubt? Let us go up; the Lord is able to deliver us, even as our fathers, and to destroy Laban, even as the Egyptians."  (1 Nephi 4:1–3)

I note that Nephi compares Laban to the armies of Pharaoh suggesting "and to destroy Laban, even as the Egyptians".  It seems to me that he already had a premonition that Laban should be destroyed.