The groundwork having been laid, we now understand for historical as well as scriptural reasons that the Israelite way of worship was laid waste, telling us that Jehovah discontinued his covenant relationship with the nation of Israel.  It will also be shown that the Law Covenant has become obsolete.  When the Law Covenant became obsolete, the Israelites lost their position as God's covenanted people.  This posistion was a matter of contract, covenant.

The inspired scriptural reasons are:

Those who obeyed the law had the right to life, they earned it.  No one could earn life through works since all humans are sinners; so, this stipulation, as Paul says, only did the following:

Galatians 3:19, "Why, then, the Law? It was added to make transgressions manifest, until the seed should arrive" (NW)
 ** Swedish translation below.
(Swe1917) Gal 3:19, Vartill tjänade då lagen? Jo, på det att överträdelserna skulle komma i dagen, blev den efteråt given, för att gälla till dess att »säden» skulle komma, han åt vilken löftet hade blivit givet; och den utgavs genom änglar och överlämnades i en medlares hand."
Translation, red text: "Yes, so that the transgressions should come into daylight."  This expresses the same thought as the NW.

The purpose is as Paul wrote to the Romans

Romans 7:13, "Did, then, that which is good, unto me become death? Far be it! But it was sin, that it might appear sin, through that which was good unto me working out death, in order that, exceeding sinful, might sin become through the commandment." (Rotherham)

In this way, God demonstrated through the Law Covenant, which was perfect, that man is imperfect.  Having shown sin to be death-dealing and life to be beyond imperfect man's reach, the need for something better than the Law Covenant was established.  That is why Paul used the phrase "tutor to bring us unto Christ.".

Galatians 3:24-25, "So that the law is become our tutor to bring us unto Christ, that we might be justified by faith. 25But now that faith is come, we are no longer under a tutor." (ASV)

Christ came to fulfill the Law. (Matt 5:17)  When the perfect man, Christ, was hung on the stake (the cross actually was an upright stake), he was cursed for our sakes.  At his death, he gave his human flesh and blood as a perfect sacrifice.

Regarding the ramifications to the Law Covenant, Paul comments here on Jeremiah's promise of a New Covenant:

Hebrews 8:13, "In that he saith, A new covenant he hath made the first old. But that which is becoming old and waxeth aged is nigh unto vanishing away."(ASV)

When the old Law Covenant was voided by Christ's death, the new covenant became operational by the same death.  This had the effect of nullifying that covenant's clause making natural Israel God's covenant people.  Because of the new covenant Spiritual Israel was now God's covenanted people.

Romans 9:6-8, "Not however as though the word of God had failed; for not all are Israel which are of Israel; 7nor because they are seed of Abraham are all children: but, In Isaac shall a seed be called to thee. 8That is, they that are the children of the flesh, these are not the children of God; but the children of the promise are reckoned as seed." (Darby)

The Jewish system "vanished away" in 70CE when the Romans destroyed the temple and the genealogy records.  According to the Law Covenant, no priest was permitted to serve at the temple without this proof.  Thus the Jewish priesthood became defunct at the moment their registers were destroyed.  As such, the Jewish way of worship came to a complete end.  This gave them and the world proof that God had rejected the nation of Israel as his people.

It became "obsolete" and was "abolished" when Christ died on the stake.

Ephesians 2:15-19, Making void the law of commandments contained in decrees; that he might make the two in himself into one new man, making peace; 16And might reconcile both to God in one body by the cross, killing the enmities in himself. 17And coming, he preached peace to you that were afar off, and peace to them that were nigh. 18For by him we have access both in one Spirit to the Father. 19Now therefore you are no more strangers and foreigners; but you are fellow citizens with the saints, and the domestics of God.  (DRC)