Since God does not want anybody to perish, neither should we (2 Peter 3: 8ff), but each person is created with a will to choose. We cannot force anyone to become a believer, but we can pray for them to permit God to transform them from inside out. Prayer changes people and circumstances to the glory of God.
Example of a prayer to pray for the person you wish to become saved:
“Father, I thank you that it is not your will that anyone should perish. You’re patient and willing to draw as many who wish, into your Kingdom. Thank you that each person You have created is precious to You. I also thank you that You have given each of us a free will to choose whether, or not, to receive the gift of salvation through Your free grace.
LORD, I humbly pray that You would open _____’s eyes and understanding to know beyond a shadow of doubt that Jesus is Your Son and that He alone can save and give us eternal life. Help _______ overcome hurdles of doubt and other things that may be preventing them from submitting to Christ. Bring other believers to guide ______ to the path that leads into Your kingdom and a life fully dedicated to You through Jesus Christ. Lord, I pray that through the months and years after _______ becomes a believer, You would guide, protect, and help ________ grow in faith and bear fruit in his (or her) area of calling in Jesus’ Name. Amen.”
A shorter version that a younger person can pray:
“God, thank you that You don’t want anyone to perish, but You have given us the freedom to choose. Please open ________’s eyes to see and _______’s heart to choose to receive Jesus as Savior and Boss, and help _______ grow as a believer, I pray in Jesus’ Name. Amen.”
Romans 3: 22ff; 10: 9 – 13
2 Corinthians 5: 17 – 21
Ephesians 2: 8 – 9
2 Peter 3: 8ff