100% Jesus was resurrected on the first day of the week, commonly called Sunday. No disputing that.

It's just so important that we follow what Christ said...'It is written'. And His tradition was to keep Sabbath like His Father wrote.

If you love me, keep my commandments - John 14:15

And I understand the desire to follow church traditions, I just think it's much more important to follow what the bible says and what Jesus lived. If that makes sense....