Many Have Never Heard
Paul continues his rhetorical questioning by asking what the possibility of belief is if a person has never heard the truth. Think about it: ignorance does not mean a lack of intelligence it's just a lack of awareness or knowledge on a subject. Have you ever met someone who has never heard the name Jesus? A person cannot believe in someone or something that they do not realize exists.
There are more than 1.5 billion humans currently alive who have never heard the name of Jesus. They cannot believe if they've never heard. Pray right now for the role you will play in getting this knowledge to them.
What must be true if a person is to believe in Jesus for salvation?