Hi Newsy,
]Jesus came in fulfillment of scripture and to fulfill the scriptures,
(Matt 5: 17,18) Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil.
For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.
He taught in accordance with scripture and what scripture predicted of him he did not conflict with scripture.
(Matt 13:35) That it might be fulfilled which was spoken by the prophet, saying, I will open my mouth in parables; I will utter things which have been kept secret from the foundation of the world.
(Matt 26:53,54)
Thinkest thou that I cannot now pray to my Father, and he shall presently give me more than twelve legions of angels?
But how then shall the scriptures be fulfilled, that thus it must be?
(Luke 24: 25,27, 44)
Then he said unto them, O fools, and slow of heart to believe all that the prophets have spoken:
And beginning at Moses and all the prophets, he expounded unto them in all the scriptures the things concerning himself.
The Apostles weather by word , letter or tradition, taught in accordance with scripture not in conflict with scripture,
(Acts 17:11) The Berean’s were complemented because they received the word of Paul and Silas and checked it against scriptures to determine if they were true
Surely if they checked the scriptures, to prove what was being said to them was true by Paul and Silas, this would suggest they were speaking in accordance with scripture.
It was Paul practice ( or you can say tradition) to use the scripture to reason with them (this is Old Testament)
And Paul, as his manner was, went in unto them, and three sabbath days reasoned with them out of the scriptures,
Opening and alleging, that Christ must needs have suffered, and risen again from the dead; and that this Jesus, whom I preach unto you, is Christ.
(Acts18:24, Acts18:28, Romans1:2, Romans4:3, Romans9:17, Romans10:11
Romans11:2, Romans15:4,Romans16:26, 1 Corinthians15:3,1 Corinthians15:4
Galatians3:8, Galatians3:22, 2 Timothy3:16, 2 Timothy3:15.)
I can go on with this and with other apostles to prove their practice weather by word of mouth or by letter or by tradition they were in accordance with scripture not in contradiction of scripture.
Hebrew 10. I agree deals with christian Jews who were thinking to return to Judaism however the Passover and all that the earthly temple and it system, represented Jesus and his life and ministry.
The bread and fruit of the vine (the communion) was instituted by Jesus to represent his body and blood (his death) and that it might be remembered by his followers.
The Jewish system foreshadowed Jesus life, sacrifice and his priestly ministry, the Jews looked forward to Messiah coming (which largely they rejected) we look backward to Jesus having come and died through the Lord Supper. the same bread for the Passover was used for the Lord Supper.
Christ does not condemned the temple and the Lavitical system they represented His Ministry and the Heavenly Temple in which he is Priest and High Priest (the reality of those things). However he rejected the priests, high priest and Jews which rejected him and his teaching.
The Pharisee doctrine, traditions and practice which replaced, added to or take away from the Word of God through the Prophets and Moses he did encourage the Jews and his disciples to reject, when they agreed he encouraged them to accept.
(Matt 16:12, 2) Then understood they how that he bade them not beware of the leaven of bread, but of the doctrine of the Pharisees and of the Sadducees.
(Mark 7:7,8,9) (Matt 23:3,4,23)
Full well ye reject the commandment of God, that ye may keep your own tradition.
(Acts 4:18,19,20)
And they called them, and commanded them not to speak at all nor teach in the name of Jesus.
Peter and John answered and said unto them, Whether it be right in the sight of God to hearken unto you more than unto God, judge ye.
For we cannot but speak the things which we have seen and heard.
God Bless.