Ellamae, Neither of us can change what the scripture says.  But we don't have to understand scripture the same way. In fact, we can't understand it the same way if we don't use the same rules (hermenuetics).  Adventists have always read the scripture believing its meaning was more or less, plain and simple.  

Foot-washing at communion is a good example.  We ought to wash one another's feet because Jesus said, "If I then, your Lord and Master, have washed your feet; ye also ought to wash one another's feet. For I have given you an example, that ye should do as I have done to you."  Plain and simple.  Adventists reject the notion that Jesus was primarily speaking in metaphor and we establish a doctrine about foot-washing at communion.  We do the same thing with the Sabbath. It doesn't say the day of worship was changed to Sunday, so we don't keep Sunday, we keep the Seventh-day. Adventists hold to many other doctrinal peculiarities that arise out of our hermenuetic.