No you miss the point entirely
I don’t care what the NOSTRA AETATE says .
Mary , her cousin Elizabeth and her husband Zechariah were righteous in God’s eyes because they kept his original covenant .
Do you know what Zechariah was doing when he got word that his wife would bear a son ?
They were at the time of their birth under the Old Covenant and they were keeping it so they were righteous in God’s eyes .
How can the New Covenant cover them at that time when it had not happened yet ?
Payment for sin by the New Covenant did not happen until
Jesus paid the ultimate price at the cross. Before this time people who were righteous in God’s eyes were the ones who kept his Old Covenant and to say otherwise is to totally ignore God’s Covenant with Israel.
Here in the Old Testament were are told about a New Covenant but until that New Covenant went into effect it was the Old one that made people righteous.
Jer 31:31 Behold, the days come, saith the LORD, that I will make a new covenant with the house of Israel, and with the house of Judah:
Jer 31:32 Not according to the covenant that I made with their fathers in the day that I took them by the hand to bring them out of the land of Egypt; which my covenant they brake, although I was an husband unto them, saith the LORD:
Jer 31:33 But this shall be the covenant that I will make with the house of Israel; After those days, saith the LORD, I will put my law in their inward parts, and write it in their hearts; and will be their God, and they shall be my people.
Jer 31:34 And they shall teach no more every man his neighbour, and every man his brother, saying, Know the LORD: for they shall all know me, from the least of them unto the greatest of them, saith the LORD: for I will forgive their iniquity, and I will remember their sin no more.
You do realize that none of the people were Catholics right ?
“”How can the New Covenant cover them at that time when it had not happened yet?””
By believing the OT foreshadows and represents the coming Christ
Those who accepted the foreshadowing of Christ before Christ in the OT are covered by Christ and are “the people of God.” Scripture says no Salvation without Christ(Acts 4:11-12) thus,some people of the OT are covered
Acts 4:11-12 says....This is the stone which was rejected by you the builders, which is become the head of the corner. [12] Neither is there salvation in any other”. The typology from the OT is ....“The stone which the builders rejected has become the chief cornerstone. This was the LORD’s doing; it is marvelous in our eyes.” (Psalm 118:22-23)
Here is a good article from Association of Hebrew Catholics
The Church - Prepared for in the Old Covenant
http://hebrewcatholic.org/FaithandTheology/On-People-Israel/churchpreparedin.html