Papapeg,
You didn't specifically "ask a question" in your first post, but I can see that some uncertainty does exist, so I'll point out some clear differences in the dispensations of the OLD covenant and the NEW covenant.
Jesus came in the....
"fulness of time"....Ephesians 1:10....(the completion and end of "TIME").
This is the AGE OF ETERNITY....
http://www.blueletterbible.org/search/translationResults.cfm?Criteria=and in the age to come eternal life&t=RSV&sf=5
As was pointed out in another post, the Jews had to perform rituals and make sacrifices to God in order to receive "purification" from their violations of Mosaic law (Mosaic law was the COMBINATION of 10 commandments PLUS all of the rules/ordinances that Moses decided to add to the commandments). The purification that the Jews received was just temporary and had to be repeated yearly on the day of atonement, BUT NOW, that Jesus became the FINAL and everlasting.eternal sin sacrifice,...PURIFICATION IS ETERNAL.
Ephesians 2:15 "by abolishing in his flesh the law of commandments and ordinances".
James 1:25 and 2:12 "the PERFECT law"....."the law of LIBERTY".....
.....(the modern day moneychangers rather we be under their control so that we will just keep bringing them our money, they have no need to let us know about this "liberty" LAW).
For the last 2000 years, The Lord's "church" (the collection of all who have Jesus as their savior) have been living in the "age of eternity" (few believers realize/understand it because it is not TAUGHT).
When Jesus hung on the cross, blood AND WATER flowed from His side (His Spirit will teach us to have "LIVING water" in our hearts if we are a good student). This is so that we...
"neither thirst" (Revelation 7:16).
Unfortunately, there have always been many believers (both OLD and NEW covenant believers) that only "hunger" to get from God whatever they can.
...and they also do it without truly/sincerely LOVING HIM and His ways of goodness....(God is light and we should walk as children of light).
"good and right, and true"....Ephesians 5:8.....
....(yes, God wants us to be "lovers of goodness",...in the O.T., the Jews would only do "good" because they were COMMANDED).
WE (Jesus believers) worship GOD ETERNAL), the Jews did not have GOD ETERNAL, nor did they have the FINAL sin sacrifice (the final and permanent CLEANSING).
God is not limited to ANYTHING, so He always 'FORESAW' everything that ever will happen (even since BEFORE the foundation of the world......because He is ETERNALLY "God", so,...His 'sending Jesus' is not "NEW" to Him (it's not a surprise to HIM), it's only "NEW" to humanity)....
http://www.blueletterbible.org/search/translationResults.cfm?Criteria=the foundation of the world&t=RSV&sf=5
......BUT, before Jesus came to earth and was crucified, the Jewish scriptures only TOLD them of a promised Messiah,....and so, they never entered/received ETERNAL REST ("The Lord's DAY" is the ETERNAL SABBATH REST)....
"they shall never enter my rest" (even though God's Son had already FINISHED God's dispensations since the foundation of the world......reference from the previous link).
In the O.T., the Jews only worshipped "Jehovah God" (the house of Israel only had ONE steward/master..."Jehovah God", they did not have The SON (neither did they know that the promised Messiah would be a "son").....yes, God always had a "Spirit", but neither did the Jews include the Spirit in their worship,...and God's Spirit was not "ETERNAL" either...
Hebrews 9:14 "eternal spirit.....purify your conscience".
The Jews did not have THREE manifestations/dispensations of God (what some call 'trinity'), they only knew of ONE 'steward'/master/"HUSBAND" of the kingdom of God (Jehovah).....this was spoken the Judaizer Jews that accepted Jesus as the Messiah (they were now engaged/"betrothed" to Jesus)...
2 Corinthians 11:2
"I betrothed you to Christ to present you as a pure bride to her one husband" "her" is "ISRAEL").
It is because of ALL that Jesus did (the crucifixion AND the giving of the Spirit), that not only our flesh can be purified, but also our "CONSCIENCE" if we learn from His Spirit to always do the right thing so that our conscience will be clear every day.
The Jews were like the Zealots (they wanted an EARTHLY KINGDOM...a kingdom of MAMMON)....we should be careful not to imitate the "sons of the kingdom"......
http://www.blueletterbible.org/search/translationResults.cfm?Criteria=while the sons of the kingdom will be thrown into the outer darkness there men will weep and gnash their teeth&t=RSV&sf=5
Our devotion should be one of gentleness and sincerity. not hypocrisy and 'forced' goodness. We should have the ability in our heart AND MIND/attitude to do feel deep sentiment (a person can have many 'EMOTIONS') like the woman who wiped Jesus's feet (Luke 7:44),....we should be able to 'cry' and FEEL sorrow (the precursor of LOVE...God is LOVE). When we truly FEEL sorowful sentiment, water drips from our eyes (it is not 'dead' water, it comes from the heart).......if we TRULY believe, then....
"He who believes in me, as the scripture has said, 'Out of his heart shall flow rivers of living water.', John 7:38.
Full salvation ("purification of the flesh" ONLY will not yield the "better things that belong to salvation", Hebrews 6:10) requires being a SON OF GOD (instead of only a "saint"). It's the "living water" of a pure heart ("Spirit") that combines everything in harmony in the heart and mind of the believer.......
http://www.blueletterbible.org/search/translationResults.cfm?Criteria=these three agree&t=RSV&sf=5
There are other functional differences between the O.T. dispensations and the N.T. dispensations that have not been taught.
The NEW dispensation/covenant is VERY different. Since the crucifixion and everything Jesus did 'HAPPENED' and salvation was ACCOMPLISHED/DONE/FINISHED/FINALIZED, now our devotion/worship should be to have a better, deeper, more close relationship (true worship depends on moving on and going "ahead" after having received the benefits of the doctrine about Jesus being the everlasting "sin" sacrifice).
In order to have a deeper RELATIONSHIP with God, we shouldn't just believe that HE EXISTS ("faith TOWARD God"), but we should believe and understand/feel that He is a loving king God.......
"For whoever would draw near to God must believe that he exists and that he rewards those who seek him"
Hebrews 11:6....
......(IF we WANT TO "draw near")....."WANT to" instead of being forced by books.....(of course it is wise to "want to").
So, we should have a "faith for faith" Romans 1:17,...and also we should have JESUS as our ONLY foundation (we should no longer have a "repentance foundation").
"Therefore let us leave the elementary doctrine of Christ and go on to maturity, not laying again a foundation of repentance from dead works and of faith toward God" (Hebrews 6:1).
We have the SAME GOD, but the ETERNAL DISPENSATION (but we are not Jews, they were baptized into MOSES, we are spiritually living IN JESUS (the spirits inside of Jesus's body have no gender....("neither male nor female").
1 Corinthians 10:2 "and all were baptized into Moses in the cloud and in the sea".
John 10:8 "All who came before me are thieves and robbers; but the sheep did not heed them".
...even John the Baptist clearly stated that Jesus "ranks before me", John 1:15.
God wants to be "Abba Father" to us, NOT "MASTER" so that we can be a "SON" of God.......He tells us to be a....
"lover of goodness, master of himself" and that nthere should be no "self-abasement" (Colossians 2:18).
Maybe there just needs to be a CLEAR statement that things really are different in the 'JESUS DISPENSATION' (age of ETERNITY)....I trust that I made that obvious.
All verses are from the RSV.