In “Torah Tapestries on Sefer Shemos,” Parshat Va’era, Rebbetzin Shira Smiles’ takes up a theme (pages 13-17) concerning “Learning to Appreciate.”
Rebbetzin Smiles writes:
Before the first plague, blood, Hashem commanded Moshe Rabbeinu to first warn Pharoah of the impending plague…. If Hashem told Moshe to warn Pharoah that he was going to hit the water, we would expect the next instruction to read “And if Pharoah refuses, then you shall raise your staff and strike the water. ” But that’s not what Hashem said.