Genesis 13:12-13 New International Version (NIV)
12 Abram lived in the land of Canaan, while Lot lived among the cities of the plain and pitched his tents near Sodom. 13 Now the people of Sodom were wicked and were sinning greatly against the Lord.
The good water and the best land seemed like the best choice, but Lot failed to see that the area could destroy his family. Sodom was a wicked place and could provide temptations that would lead family members astray. God does command us to reach out to people around us, we must be careful not to become like the people we are trying to reach. Make sure you have fellowship with fellow believers and keep healthy boundaries when working with non-believers. We are to do the great commission. Stay strong in your faith and relationship with Jesus.