What does the Bible say about the common salvation?

The common salvation referred to in Jude is the gospel that is preached universally among God's people - salvation established by God's sovereign grace. Jude emphasizes the unity of this message, which aligns with the proclamation of God's purpose to choose a people before the foundation of the world, as seen in Ephesians 1:4-5. This salvation is not a mere offer; it is a declaration of God's eternal will to save His elect through the redemptive work of Christ and the efficacious calling of the Holy Spirit.