First Nephi 3:6

Therefore go, my son, and thou shalt be favored of the Lord, because thou hast not murmured.

Faithful obedience brings the Lord's favor. Because Nephi's heart is right and he is anxious to be obedient, when a commandment comes, he is ready to try. Attitude is the key to happiness and joy in the work of the Lord. The Lord loves a willing heart.