SDA are about the closest to being Jewish without being Jewish.
Somewhere along the line they failed to believe that salvation is by grace and that folowing one part of the law obligates one to follow all the law.
"SDA are about the closest to being Jewish without being Jewish."
But the SDA don't keep Passover and the other Jewish festivals plus they are Trinitarian.
I think the closest would be the Church of God, the Armstrong groups.