1 Corinthians 10:21 - The Cepher - Terrible Translations by DR STEPHEN PIDGEON

Lord’s
Κυρίου (Kyriou)
Noun - Genitive Masculine Singular
Strong's 2962: Lord, master, sir; the Lord. From kuros; supreme in authority, i.e. controller; by implication, Master.

Lord,
Κύριος (Kyrios)
Noun - Nominative Masculine Singular
Strong's 2962: Lord, master, sir; the Lord. From kuros; supreme in authority, i.e. controller; by implication, Master.