^18 (A)I will open rivers on the bare heights,
    and fountains in the midst of the valleys.
^(B)I will make the wilderness a pool of water,
    and the dry land springs of water.

^21 (A)They did not thirst when he led them through the deserts;
    ^(B)he made water flow for them from the rock;
    he split the rock and the water gushed out.