Romans 1:14-17 (NKJV)
14I am a debtor both to Greeks and to barbarians, both to wise and to unwise. 15So, as much as is in me, I am ready to preach the gospel to you who are in Rome also.
16For I am not ashamed of the gospel of Christ, for it is the power of God to salvation for everyone who believes, for the Jew first and also for the Greek. 17For in it the righteousness of God is revealed from faith to faith; as it is written, “The just shall live by faith.”