Alma 5

As Alma teaches that because his fathers followers become humble and full of faith, he explains that the Savior -

"...changed their hearts; yea, he awakened them out of a deep sleep, and they awoke unto God. Behold, they were in the midst of darkness; nevertheless, their souls were illuminated by the light of the everlasting word".  (Alma 5:7)

Of this Alma asked -

"...on what conditions are they saved? Yea, what grounds had they to hope for salvation?..."  (Alma 5:10)

Obviously, the conditions of having Him change our hearts is faith and humility.