[annalex]

Is there another infallible source for what the apostles taught?

Yes. The Holy Ghost.

Next post: But you have to work to earn that grace right?

No, your good works are the result of grace, not a payment for grace.

[CynicalBear]

>>Yes. The Holy Ghost.<<

Then please show where the "Holy Ghost" shows the apostles teaching the assumption of Mary.

>>No, your good works are the result of grace, not a payment for grace.<<

As is faith. Faith is given us by the grace of God. Salvation is by grace through faith.