It doesn't matter what you've done, even if you did it today. How can you be sure? John 3:16 says, "God loved the world so much that he gave his one and only Son, so that everyone who believes in him will not perish but have eternal life" (NLT). God gave His best—His Son—for you. He loves you that much. To have the eternal life He offers you, you only need to believe in Jesus. To accept Him into your heart today, pray this prayer:
I come to You in Jesus' Name. I don't want to perish. I want to have eternal life. The Bible says, "If you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved" (Rom. 10:9 NLT). I believe in my heart that You raised Jesus, Your Son, from the dead. And I confess Him as my Lord. Therefore, I am saved. I have eternal life.