Abraham Piper (son to John and Noel Piper) spent four years as a young adult wandering from the Lord, at which time he was decisively saved. This essay he wrote sometime later would be useful to Christian parents wrestling with how to interact with their non-Christian adult children. He unpacks twelve principles:
1. Point them to Christ.
2. Pray.
3. Acknowledge that something is wrong.
4. Don’t expect them to be Christlike.
5. Welcome them home.
6. Plead with them more than you rebuke them.
7. Connect them to other believers.
8. Respect their friends.
9. E-mail them.
10. Take them to lunch.
11. Take an interest in their pursuits.
12. Point them to Christ.