Here are “3 Questions for Sleepy and Nominal Christians” by Tim Keller that you could ask to help someone consider whether or not they truly really know Christ.
Related Bible Verses:
Philippians 2:12 “Therefore, my beloved, as you have always obeyed, so now, not only as in my presence but much more in my absence, work out your own salvation with fear and trembling”
Acts 16:31-33 “And they said, “Believe in the Lord Jesus, and you will be saved, you and your household.” And they spoke the word of the Lord to him and to all who were in his house. And he took them the same hour of the night and washed their wounds; and he was baptized at once, he and all his family.”
John 3:16 “For God so loved the world, that he gave his only Son, that whoever believes in him should not perish but have eternal life.”
Romans 3:28 “For we hold that one is justified by faith apart from works of the law.”
- How can I be saved?
- How do I know I’m saved?
- Can a Christian lose salvation?
- What is the plan of salvation / way of salvation?