Does Romans 1:20 mean we don't need to evangelize?
No. Romans 1:20 shows creation reveals God's eternal power and Godhead, leaving humanity without excuse, but that does not cancel evangelism. The constant admonition is that we are to promote the gospel to the ends of the earth. We cannot sit in our living rooms and let the world go to hell.
Les teaches from Romans 1:18–20 that God's wrath is revealed from heaven against all ungodliness and unrighteousness of men who hold the truth in unrighteousness. He notes that what may be known of God is manifest in them, for God has shown it to them. The invisible things of Him from the creation of the world are clearly seen, being understood by the things that are made, even His eternal power and Godhead, so that the whole human race is without excuse. But Les explains that this does not mean we can just sit in our living room and let the world go to hell. No way. The constant admonition is that we are to promote the gospel to the ends of the earth. Absolutely we are.
For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse:
More Questions
What makes Romans 1:20 difficult to accept?
Romans 1:20 is a hard verse to swallow because it forces us to think even about people who lived back before the time of Christ.
Why is Romans 1:20 a hard verse to accept?
Romans 1:20 is hard to accept because it means we have to think about people who lived even before Christ's time, who also had clear knowledge of God from creation.