Note 12 at 1Co 11:31: This verse is very problematic for those who think Paul was speaking of Christians who have some sort of unworthiness as they take communion and are therefore being judged by the Lord with sickness and death. However, if you interpret the unworthiness mentioned in 1Co 11:27 and 29 as referring to non-Christians taking communion (see notes 7 and 8 at 1Co 11:27 and note 10 at 1Co 11:29), then this is very simple.

Those who judge themselves sinner and put faith in Jesus experience salvation, and they will not be judged. That judgment was placed on Jesus. 1Co 11:32 says that when we (Christians) are judged, we are chastened but never condemned (or damned, 1Co 11:29), as non-Christians will be (see note 13 at 1Co 11:32).