And we talk of Christ, we rejoice in Christ......2 Nephi 25:26

In the Old Testament I read that the Israelites were commanded to destroy all the people in the lands they were to possess to prevent these people from teaching them their abominations such as serving other gods and sinning against the Lord. This shows the influence that being around wicked people can have on us. In today's world, we aren't supposed to go around killing wicked people to get rid of their evil influence, and we can't always avoid being around evil influences in our lives, but we can choose those we associate with most as our close friends and we need to make sure we choose wisely. They don't need to necessarily share all our same beliefs, but they need to be good people who would not encourage us to do things that are wrong. It's important to surround ourselves, as much as possible, with people who will strenghten us and encourage us to be the best people we can be. Deut. 20: 17-18
"But thou shalt utterly destroy them; namely, the Hittites, and the Amorites, the Canaanites, and the Perizzites, the Hivites, and the Jebusites; as the Lord thy God hath commanded thee: That they teach you not to do after all their abominations, which they have done unto their gods; so should ye sin against the Lord your God."

In the Book of Mormon I read that Nephi prophesied that Jesus Christ would be crucified, laid in a sepulchre, and after three days He would rise from the dead with healing in His wings. All those who believe on His name would be saved. 2 Ne. 25: 13 "Behold, they will crucify him; and after he is laid in a sepulchre for the space of three days he shall rise from the dead, with healing in his wings; and all those who shall believe on his name shall be saved in the kingdom of God. Wherefore, my soul delighteth to prophesy concerning him, for I have seen his day, and my heart doth magnify his holy name."

A verse from a thought booklet talks about being in darkness but seeing a great light. Learning about the gospel and Jesus Christ can indeed bring light into a dark life. Isa. 9: 2 "The people that walked in darkness have seen a great light: they that dwell in the land of the shadow of death, upon them hath the light shined."