Yes.
Jesus is the rock of our salvation, and that the teaching of the Apostles—which is the teaching of Jesus himself—should be what we base our faith on.
Yes.
***
Excellent.
Okay, so next question: Where do we find the teachings of Jesus and the Apostles?
The teachings are recorded in Scripture; I hope that we can both agree on that.
But if we’re going to go beyond what’s written in Scripture and claim that it’s from the Apostles, how are we to tell if it’s not false teaching?
Should we not constantly be comparing theological claims to what we know that Jesus and the Apostles DID teach, and everything else should be compared to what we KNOW is truth?