Romans 2:5

2:5 But because of your stubbornness and your unrepentant heart, you are storing up wrath for yourselves in the day of wrath, when God’s righteous judgment is revealed!

Romans 16:25

16:25 Now to him who is able to strengthen you according to my gospel and the proclamation of Jesus Christ, according to the revelation of the mystery that had been kept secret for long ages,