Silliness. God can can choose to save anyone he pleases to. HE isn’t restricted by anything. Even the pope mentioned this aspect.
Amen... I think the question is completely arrogant on it’s face. I would go so far as to say you are being disobedient to God for being so arrogant as to believe you can come up with the answer.
God can do whatever He wants to do...
That is not entirely true. Once God has limited Himself to work through a particular order or means, he is bound to it. There is no salvation outside of Christ Jesus. Salvation is through faith in Christ alone. The ceremonial and civil laws of the Old Testament were never directed toward Gentiles, and these were shadows that have been perfectly fulfilled in Jesus. The moral law is the only law that still remains for Christians.
Yes, God is limited by His Word.
When He makes a Covenant by His Word, He is bound to keep it.