Saved is used in a spiritual sense. If a person has been “saved,” it means that through Jesus' death on the cross, God has forgiven him and rescued him from being punished for his sin.
You can make more explicit how the Israelites would have been like Sodom and Gomorrah. AT: "we would have all been destroyed, like the cities of Sodom and Gomorrah were destroyed" (UDB). (See: [[rc://en/ta/man/translate/figs-explicit]]) (See: [[rc://en/ta/man/translate/translate-names]]) (See: [[rc://en/ta/man/translate/figs-simile]])