So they were saved in unbelief
Thats good to know
Things 1 Corinthians 10 teaches that you haven't the ability to form an argument against :
1) The Jews were "saved" (from Egypt, and God's judgment on Egypt, by the Blood of a Lamb)
2) The Jews were "baptized" (into Moses in the Red Sea)
3) The Jews, though both "saved" and "baptized", fell under God's wrath, and failed to inherit God's Promise, because they sinned
4) These things happened to them as "a type and shadow of things to come" Hebrews 10:1, and as a warning to Christians--the "antitypes" (the
substantive realities to which these things correspond) are:
i) the salvation which Christians have by the blood of the Lamb
ii) our baptism into Christ
iii) we (Christians), too, are subject to falling under God's wrath and not inheriting what was Promised if we do not live in a way that is pleasing to God.
This is nothing other than what I am alleging about Romans 14:23--"if you sin you are condemned", "sin compromises justification".
Now,
how you fit that in with your belief system is not my problem--you are required to hold to Scripture. You can cite anything else you like, but citing other verses that you think teach your doctrines (eg, eternal security, salvation by faith alone, etc,) is not going to have the effect of erasing any of these words.