“For there is no distinction between the Jew and the Greek, for the same Lord is Lord of all, who richly blesses all who call on him.”
Paul argues that Christ brings righteousness to everyone who believes, v. 4. His rich blessings refer to salvation and all that accompanies it. To call upon him is to appeal to God for salvation rather than one’s own righteousness.
Christ is Lord of all, so that means there is one way to be saved, by calling on him. What does this calling entail, according to the Bible?