Imagine that you had a very wealthy relative, and one day her attorney called and told you she had died and left you a million dollars. The money, he added, was deposited in a bank in your name, and you could draw on it at any time.
You'd act on it, accepting by faith that what the attorney had told you was true, and you were now a millionaire.
In a far greater way God offers us a gift- the gift of salvation in Jesus Christ. Christ has done everything possible to provide it for you; all you need to do is believe and receive.
"This is the testimony: God has given us eternal life, and this life is in his Son. He who has the Son has life." 1 John 5:11-12