The fifth aliyah describes the test of the staffs. In order to prove which tribe is divinely chosen to do the priestly service, G-d tells Moshe to take a staff from each tribe with the name of that tribe's prince on it, and the name of Aharon on the staff of the tribe of Levi. These staffs are to be placed in the tent of meeting. This is done, and in the morning it is found that Aharon's staff sprouted leaves, almond blossoms and even almonds! This proves that Aharon is G-d's choice of Kohane Gadol.