Light versus Dark

I have always known that light is stronger than dark, but I came upon a scripture than shows it so poignantly that I wanted to share it.

And it came to pass that the Lamanites did hunt the band of robbers of Gadianton; and they did preach the word of God among the more wicked part of them, insomuch that this band of robbers was utterly destroyed from among the Lamanites.
38
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We can irradicate our "wicked" parts by immersing ourselves in the word of God. What a blessing!Book of Mormon | Helaman 6:37 - 38) And it came to pass on the other hand, that the Nephites did build them up and support them, beginning at the more wicked part of them, until they had overspread all the land of the Nephites, and had seduced the more part of the righteous until they had come down to believe in their works and partake of their spoils, and to join with them in their secret murders and combinations.