Proof that God and heaven exist

When sharing the good news of Jesus with loved ones, more than once I have been asked, Why doesn't God send back someone I know to prove that there is a God and Heaven does exist? How do I answer this question? Thank you for your help.

I would direct you to the account of the rich man and Lazarus (Luke 16:19-31).  The rich man in hell requested that someone be brought back from the dead to warn his brothers on earth about hell’s existence.  His request was denied.  Recall what response he received:  “They have Moses and the Prophets; let them listen to them…If they do not listen to Moses and the Prophets, they will not be convinced even if someone rises from the dead” (Luke 16:29, 31).  That response holds true today.  Through his word God speaks about himself and the existence of heaven.  His word is all that is needed to change hearts and minds.

Or think of the different times during Jesus’ earthly ministry when unbelieving Jews demanded a sign from him.  (See, for example, Matthew 12:38; 16:1)  People demanded signs—spectacular deeds—from the Lord because in their opinion his word was not enough.  You notice that in those instances Jesus did not give in to people’s demands.  His word is all that is needed to change hearts and minds.

In conversations with your loved ones you can direct them to the Bible, which is God’s complete written revelation to the world (Hebrews 1:1-2).  God’s word is able to make people “wise for salvation through faith in Christ Jesus” (2 Timothy 3:15) and equip them “for every good work” (2 Timothy 3:17).  God bless your conversations.