How many are included in the "all" who have sinned?

Answer

"What then? are we better than they? No, in no wise: for we have before proved both Jews and Gentiles,
that they are all under sin." Verse 9.

15. When God sent the Ninevites a warning message, how did they show their repentance, and what was the result?
Of what is Christian baptism an evidence?
What did Moses set forth as the basis of righteousness?
Why do the inhabitants of heaven worship God?
What is said of the character of these scaled ones?
How perfect would God have us become?
What will His true followers do?

Questions & Answers are from the book Bible Readings for the Home Circle