Of course your first point of contact is with God. Call out to Him, and then listen for His response. Contact another person in your church and ask that person to join you in prayer and in contacting others at your church interested in this and be sure to connect with those who are missing from your church. Ask them what has been happening in their lives. Tell them that you miss them. And be sure to do some deep listening.
Another good person to contact is your conference youth director, as well as your union youth director. And this comment that you post will be sent to the North American Division, where Tracy Wood oversees this part of Young Adult Life that focuses on reaching out to missing young people.
301-680-6400, ask for Tracy Wood
Youth and Young Adult Department
North American Division of SDAs
12501 Old Columbia Pike
Silver Spring, MD 20904-6600