It’s easy to think that a person needs to see a miracle before he’ll be convinced to believe in God or come to Christ. When in reality, miracles don’t create genuine faith in an unbeliever. Look at these two examples from the Bible:
• “Though he (Jesus) had done so many signs before them, they still did not believe in him.” - John 12:37
• And with the story of Lazarus and the rich man. The rich man who went to hell said: “'No, father Abraham, but if someone goes to them from the dead, they will repent.'
He said to him, 'If they do not hear Moses and the Prophets, neither will they be convinced if someone should rise from the dead.'" - Luke 16:30-31
These passages show the complete sufficiency of the word of God in evangelism. People don’t need to see a miracle to believe, instead the Bible says that faith comes from hearing the word of Christ (Romans 10:17). So as long as we are being faithful in presenting the gospel, God can cause that person to come to saving faith.
And since the gospel is the power of God for salvation (Romans 1:16), let’s spend our time sharing that.