Commentary for Numbers 17:23

ויצא פרח AND IT BROUGHT FORTH A BLOSSOM — Take this as what it literally implies.

ויגמל שקדים, it bore ripe almonds. Our sages in Bamidbar Rabbah 18,23 say that the reason G'd chose almonds was to serve as a warning that anyone who would challenge that the priesthood belonged to the descendants of Aaron would be dealt with very promptly. It appears to me that what forced the sages to come to this conclusion was that if someone is desirous of having a miracle performed for him he does not wish the fruit to ripen prematurely as this could reflect something negative about the one who performs the miracle and is unable to deliver fully ripened fruit. If G'd nonetheless exposed Himself to such an interpretation by the people who watched this miracle it could only be because He had considerations which outweighed those of how His own image was being perceived.

ויוצא פרח ויצץ ציץ ויגמל שקדים, according to the plain meaning of the words when Moses came to inspect these staffs he merely found that Aaron’s staff had blossomed.