RomeSweetHome, your whold premise that no one can understand the OT without the NT is ludicrous and totally denies Biblical truth. Phillip used the OT to teach the eunuch, Paul used the OT to preach the gospel, Jesus quoted the OT to establish and prove who He is. Any knowledgable person can teach God's truth with only the OT. The vast majority of the NT contains instructions and teachings for the universal Church of Jesus Christ.
Mary is the Ark that carried the Lord for nine months? The Ark of the Covenant not only carrried the Law, Moses' staff, a jar of manna, and the bronze serpent (until it was destroyed), it was topped with the mercy seat, which is a symbol of the throne of God. God spoke to Moses from the mercy seat. Jesus speaks for God in the NT (not Mary). On Yom Kippur the High Priest sprinkled the blood of the goat sacrificed to atone for the national sins of Israel on the mercy seat and it was only that one day of the year the High Priest entered the Holy of Holies. The Ark disappeared when the nation of Judah was taken into the Babylonian captivity.
In other words the Ark of the Covenant was useless for anything more than a storage cabinet and a place to sprinkle the blood of a dead goat as a symbol of Christ's future sacrifice. The power of God surrounded the Ark, which is why no man could touch it and live until His glory left the Temple as recorded in Scripture.
The Ark was a piece of furniture that was holy only as long as God's glory had a use for it.
Yes one verse is meaningless when that verse is taken out of context and interpreted to establish a false doctrine. On the other hand how many Scriptures use the word "until"? 575 in both Old and New! How many uses of the word "until" make your case? NONE!
We had a lot discussion of the Greek "adelphos", "adelphe", "anepsios", and "suggenes" once before that you totally ignored in favor of a "Jewish custom" that you think overrides God's revealed truth.
The Catholic Church appeals to "Jewish customs" only when those "Jewish customs" can be used to obfuscate God's truth and then "Jewish customs" are ignored because the Jews rejected their Messiah when "Jewish customs" can but the lie to your manmade traditions.