The Torah and the Jewish canon have no bearing on Christianity. Christians since the first century have used the Septuagint as our canon for the Old Testament. The Jewish canon was only definitively decided after the advent of Christianity. It is the Septuagint from which the Old Testament references are made in the Gospels and the Epistles.
The Septuagint Use in the New Testament - Bible Authenticity
What deuterocanonical books are quoted in the New Testament?
There are loads of other sources for this. Just Google "Deuterocanonical references in New Testament"
More correctly I should have said Tanakh. What book did Jesus open and quote from if there was no written Hebrew text?
Where you go wrong is thinking the Tanakh has no bearing on Christianity.