There's no greater news we can give to someone than talking the person about Jesus Christ. The Bible calls it the good news. A family is suppose to be one that have a common understanding and agreement. They should be the type that has one faith.
While we are concerned about people outside we should not forget those who are related to us. A family were each member has Christ as their Lord and personal Savior is a family that is strong and untouchable against the wiles of the enemy.
We should be very much concerned about those who are yet to join the Christian faith. Having being enlightened we should reach out to them. We may be that person that on hearing our words they would turn to repentance. It is not something we should be nonchalant about.
If we truly love them we'll ensure we get them indoctrinated into our Christian faith. Evangelism can start anywhere. We must not have to step out of the house and go from streets to streets or from one house to another, or going on missionary trips. Just by starting with that cousin, uncle, aunty and whoever is a great start.