Romans 10:14-15

14But people will never ask Christ to help them if they have not believed in him. And they will never believe in him if they have not heard about him. And they will not hear about him unless somebody tells God's message to them.

15And nobody can go to tell God's message to people unless God sends them. This is written in the Bible: ‘When people arrive to tell us good news, we say “welcome!” ’