How to get the sibling node just before the context no

For example,

<A>
  <TEXT1>
  <TEXT2>
</A>
<B>
  <TEXT1>
  <TEXT2>
</B>
<C>
  <TEXT1>
  <TEXT2>
</C>


If context node is C, I want to get only B.

I tried using preceding-sibling::TEXT1 but I always get TEXT1 of node A, but I
want to get it of node B.

Thanks in advance
Jaime