1 Nephi 3:7 "And it came to pass that I, Nephi, said unto my father: I will go and do the things which the Lord hath commanded, for I know that the Lord giveth no commandments unto the children of men, save he shall prepare a way for them that they may accomplish the thing which he commandeth them."
In the Doctrinal Commentary on the Book of Mormon, Vol 1, we are taught:
One of the most cited and quoted verses in all of holy writ, sets forth clearly the attitude of those who trust implicitly in the purposes of God: though the means for accomplising specific objectives are not alwasy readily apparent, the obedient--acting upon the peaceful assurance born of the Spirit--move forward in quiet but deliberate ways, knowing full well that the further light and knowledge will be forthcoming. "And thus we see," Nephi later observed, "that the commandments of God must be fulfilled. And if it so be that the children of men keep the commandments of God he doth nourish them, and strengthen them, and provide means whereby they can accomplish the thing which he has commanded them." (1 Nephi 17:3)