Did Jesus ever rely on Tradition rather than Scripture to establish His authority?
It seems like none of the teachings of Christ rely on OT tradition rather than on Scripture?
Since Jesus is God, His teachings don’t “rely” on tradition, or scripture at all, as if they were higher authority than Him, that He
needed to cite. Obviously, God doesn’t need tradition, the OT, or the NT, for that matter. He could, and did, perform miracles, though He didn’t have to.
But Jesus did refer to things the apostles, and others would be familiar with. The problem with “OT tradition” is that there is no single, fixed canon of pre Christian “Sacred Tradition” comparable to what most Christians accept for the early centuries of Christianity. The OT era included doctrinal development within Judaism. For instance, some, like the pharisees, accepted the development of some kind of immortality, while the Saducees rejected that doctrinal development.
But there was not, and still is not, an official canonizer of traditions within Judaism; just various schools of interpretation. Thus, if Jesus makes reference to a current event within Israel people would know about, that doesn’t make “current events” authoritative. So the concept of “Scripture vs. Tradition” that Christians are familiar with may, or may not, apply to “OT tradition”. Apples and oranges.