MIRIAM, Moses's sister is the symbol of the Church of Today?

What is your opinion? Is Miriam's attitude towards Moses the same that the Church of today has towards the COVENANT that GOD established with our forefathers? Do you think that the COVENANT is not in use in our days?
NUMBERS 12  1) GOD rebuked the sedition of Miriam and Aaron. 10) Miriam's leprosy is healed at
                               the PRAYER OF MOSES.  14) GOD commanded her to be shut out of the host.
1 :    And MIRIAM and AARON spoke against MOSES because of the ETHIOPIAN WOMAN
        whom MOSES HAD MARRIED : for he had married an Ethiopian woman.
It was a long journey across wilderness territory to Midian, where Moses sought refuge. There at a well,  Moses'courage and readiness to act forcefull to help those suffering injustice again came to the fore. When shepherds drove away the SEVEN DAUGHTERS of JETHRO and their flock, MOSES
DELIVERED THE WOMEN and WATERED THE FLOCKS for them. As a result he was INVITED TO JETHRO's HOUSE, where HE ENTERED JETHRO's EMPLOYMENT AS A SHEPHERD for his flocks and EVENTUALY MARRIED ONE OF JETHRO's DAUGHTERS,
ZIPPORAH, who bore him TWO SONS, GERSHOM and ELIEZER.  Ex.2 ;  Ex. 18. When the
LORD sent MOSES BACK TO EGYPT, Zipporah and THEIR TWO SONS started out to ACCOMPANY HIM.  ALONG THE WAY a very serious INCIDENT occurred, the account says :
Exodus 4 : 20 -    And MOSES took his wife and his two sons, and set them upon an ass, and he
                            returned to the land of Egypt : and MOSES TOOK THE ROD OF GOD IN HIS
                            HAND.
                  21)    And the LORD said unto MOSES : "WHEN YOU GO TO RETURN TO INTO
                           EGYPT, SEE THAT YOU DO ALL THOSE WONDERS BEFORE PHARAOH,
                           WHICH I HAVE PUT IN YOUR THINE HAND : BUT I WILL HARDEN HIS
                           HEART, THAT HE SHALL NOT LET THE PEOPLE GO.