Summary
for all have sinned and fall short of the glory of God, - Romans 3:23
Everyone has sinned. No one lives up to the glory of God.
Biblical Support
Explanation
Any sin, no matter how large or how small, prevents us from living up to the glory of God. Paul has already established in Romans 1 and 2 that both Jew and Greek are without excuse. We all know that God exists (Romans 1:19-21), but we suppress that truth (Romans 1:25). We all have God’s moral standards written on the conscience (Romans 2:15). None of us live up to God’s standard of righteousness.
God created us in His image to reflect His glory. By sinning, we fall short of that glory. We do not live up to the purpose God created us for.