Numbers 20 :11

The command Numbers 20:8 was "Speak ye unto the rock." The act of smiting, and especially with two strokes, indicates violent irritation on the part of Moses; as does also his unseemly mode of addressing the people: "Hear now, ye rebels." The form too of the question, "must we, etc.," directs the people not, as ought to have been the case, to God as their deliverer, but to Moses and Aaron personally. In fact the faithful servant of God, worn out by the reiterated perversities of the people, breaks down; and in the actual discharge of his duty as God's representative before Israel, acts unworthily of the great function entrusted to him. Thus, Moses did not "sanctify God in the eyes of the children of Israel." Aaron might have checked the intemperate words and acts of Moses, and did not. Hence, God punishes both by withdrawing them from their work for Him, and handing over its accomplishment to another.