Sorry if this is off topic but -------Just to clarify what Waterfall here is saying -----
I have no idea where you get what your saying for Isaiah 52:10 ---from
This is what Isaiah 52 :10 says in context AMP B
The Lord has bared His holy arm (His infinite power)
Before the eyes of all the nations [revealing Himself as the One by Whom Israel is redeemed from captivity],
That all the ends of the earth may see
The salvation of our God.
Again you cannot take this scripture and say that the Gentiles in the Old Testament had access to God and are pardoned -----that is not what isaiah 52 in context is about -----
verse 10 is saying that all the nations will witness God's Greatness by him bringing Israel out of the bondage of the Egyptians ------
Salvation here is not meaning that all people are Redeemed from their sins and now have access to God and are pardoned from their sins ------
Many Jews today are still not redeemed from their sins as they rejected Jesus ----and remain under the laws which they cannot keep ---
Salvation here means The Israelites being deliverance from their EXTERNAL EVIl ----which is their Bondage in Egypt ====
Strong's Concordance
yeshuah: salvation
deeds of deliverance , deliverance
salvation by God, primarily from external evils,; Isaiah 52:10