Why would someone show me this???

The first part is about people worshipping idols instead of God. In verse 23 they changed the glory of the uncorruptible God into an image made like to corruptible man, and to birds, and fourfooted beasts, and creeping things. (Idols) Also verse 25 they are worshiping creatures made by the creator instead of the creator. Sounds like PETA people today. Lastly Paul goes into the ual sins committed by these pagan idol worshippers. These are all sins that were common then and just as or even more so common today. All sin idolatry, ual immorality and such will be judged by our righteous Lord Jesus . Thats what it means . What are you going to do with it? Come to Christ.