Do I know with certainty?

Around midnight Paul and Silas were praying and singing hymns to God, and the other prisoners were listening. Suddenly, there was a massive earthquake, and the prison was shaken to its foundations. All the doors immediately flew open, and the chains of every prisoner fell off! The jailer woke up to see the prison doors wide open. He assumed the prisoners had escaped, so he drew his sword to kill himself. But Paul shouted to him, “Stop! Don’t kill yourself! We are all here!” The jailer called for lights and ran to the dungeon and fell down trembling before Paul and Silas. Then he brought them out and asked, “Sirs, what must I do to be saved?” They replied, “Believe in the Lord Jesus and you will be saved, along with everyone in your household.” - Acts 16:25-31 (NLT) Of all the questions that could ever be asked, of all the questions that could ever be answered, none is more important than this one. What shall I do to inherit eternal life? That is the most important question t...