The OT is Gods revelation to the Jews.. It was never given to the church. It remains under the authority of the jewish people
The NT is Gods revelation to the church..
Rom 3:1 ¶ What advantage then hath the Jew? or what profit [is there] of circumcision?
Rom 3:2 Much every way: chiefly, because that unto them were committed the oracles of God.
Which Jewish people? The Sadducees? the Alexandrian Jews? The Essenes? The Samaritans? The Pharisees? I hope you realize they all different canons and beliefs. Now which one has monopoly on being the most Jewish when it comes to the "Old" Testament?
The Christian OT was based from the beginning on the Septuagint (LXX). The NT writers quotes from it almost exclusively. The Church accepted it whole, "apocrypha" included.
The NT is Gods revelation to the church
Last time I checked, the "New" Testament was also revealed to the Jews unless you know of any non-Jewish Apostles in Jesus' party.
And, save for the handful of them, the Jews rejected it as fraud.