How did Apollos receive the extra knowledge that began with Paul?
Apollos received the extra knowledge that began with Paul through a Jewish couple—two common, ordinary people—who brought him to this further revelation. They explained Paul's gospel to him, so he could publicly show from the Old Testament Scriptures that Jesus was the Christ and that Christ died for the world's sins.
Les explains that Apollos was already pretty good to start with, but now he had all this extra information and knowledge that had begun with Paul and come through this other Jewish couple. It took two common, ordinary people to bring him to this further revelation. With that, Apollos mightily convinced the Jews publicly, showing by the Old Testament Scriptures that Jesus of Nazareth was indeed the Christ. Les notes Apollos could go beyond that Jesus was the Old Testament Messiah and continue with Paul's gospel—that Christ died for the sins of the world, was buried, and arose from the dead. Les applies this pattern to believers today: humbly and by God's grace approach people, even a Sunday school teacher, and show them what they are missing, being skilled in the use of the Book. If they are like Apollos, they will take it to heart.