And don't leave out what was prior to Romans 1:19,
Romans 1:16-18
For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth, to the Jew first, and also to the Greek (Gentiles).
For therein is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.
For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who hold the truth in unrighteousness: