God’s decree of election from eternity past includes a remnant of people from every tribe, tongue, and nation, and that salvation has always been by grace through faith looking forward to Christ.
The Covenant of Grace is fundamentally the same in both the Old and New Testaments. People are not saved by keeping the law of Moses, but by faith in the coming Redeemer.
Just as New Testament believers look back at the finished cross, Old Testament believers—including elect Gentiles—looked forward in faith to the promised seed of the woman and the messianic sacrifices.
God’s election is never based on ethnic identity or human merit. Because salvation belongs to the Lord, His sovereign choice bypassed many physical Israelites (the non-elect) and captured individual outsiders.
God commands everyone to repent and believe, and genuinely offers the gospel to all who hear it, but He only works effectually to save those He chose before creation (the elect). Salvation is not a conditional offer that becomes active because a person first yields; rather, a person yields because God first changed their heart.
Yes, born again believers are already saved and we do possess eternal life right now. This is a definitive, present-tense reality rooted in God's sovereign grace, not a future possibility waiting to be earned. God changes the heart of a sinner first. This gives them spiritual life before they can even believe. Eternal life is a current gift. Believers do not just get it when they die.
Being joined to Christ means His life is now the believer's life. True believers will never lose this salvation. God keeps them safe until the end. Salvation is fully possessed now in spirit, though its final physical glory comes later. Those who belong to Christ face no judgment for sin at any time.
All of mankind from Adam onwards, is born into slavery to sin and Satan. Nobody is free to chose anything.