I know that's what the Catholic Church thinks and teaches but it's not what the Holy Spirit had written in scripture. What the Holy Spirit had written in scripture shows that the apostles were only to bind whatever already existed in heaven eternally. Jesus was commanding them to bind only what existed from eternity as truth. The Catholic Church changed the word that means "I am" into "will be".
No where in scripture are the apostles or anyone else given the authority to determine what is bound in heaven. They were told to declare what has been bound in heaven for eternity.
I will say that only those who God is calling to be His will actually study and understand that.
Magisterial authority in Scripture does include the power of binding and loosing, but only what is bound on earth in accordance with Scripture is bound in Heaven, and which excludes defining oneself as being an infallible and effectively autocratic organization.
For OT authority could bind and loose men, even unto death, (Dt. 17:8-13; Ps. 105:22) and even those who resist the just use of valid civil authorities are resisting God. (Rm. 13:1-7)
And even fathers and husbands are given binding and loosing power.
If a woman also vow a vow unto the LORD, and bind herself by a bond, being in her father's house in her youth; And her father hear her vow, and her bond wherewith she hath bound her soul, and her father shall hold his peace at her: then all her vows shall stand, and every bond wherewith she hath bound her soul shall stand. But if her father disallow her in the day that he heareth; not any of her vows, or of her bonds wherewith she hath bound her soul, shall stand: and the LORD shall forgive her, because her father disallowed her. And if she had at all an husband, when she vowed, or uttered ought out of her lips, wherewith she bound her soul; And her husband heard it, and held his peace at her in the day that he heard it: then her vows shall stand, and her bonds wherewith she bound her soul shall stand. (Num 30:3-7)
But the promise to apostles that "Whatsoever ye shall bind on earth shall be bound in heaven: and whatsoever ye shall loose on earth shall be loosed in heaven," (Matthew 18:18) like that of "if ye shall ask any thing in my name, I will do it," (John 14:14) is conditional upon being in accordance with the word of God.
And as we see the NT doing in their Scriptural judgment of Act 15, in contrast to the Assumption of Mary, which lacks even early testimony from tradition (and her crowning before Christ returns is contrary to Scripture) but which Rome "remembered" and made a binding belief.
Where is that "written"? Chapter, verse? Please.