OK, BUT…

Infallibility comes from God Himself, not the Magisterium, who only defined the issue.
**Matt. 16:15-19 and Matt. 18:18 ** Which extends the power of Authority to all the Apostles an subsiquent leaders were GRANTED unlimited Power of Governance by Christ, personally!
To “Bind” and To “Loose” were terms of power of ***unlimited Governance ***when they were used by Jesus and would have been clearly understood as such by those to Jesus was both COMMANDING and teaching.
FROM Strong’s Concordnance: “Bind in Hebrew means” …3**256 **yacar yaw-sar’ a primitive root; to chastise, literally (with blows) or figuratively (with words); hence, to instruct:–bind, chasten, chastise, correct, instruct, punish, reform, reprove, sore, teach.
To “Loose” means: **5203
natash naw-tash’ a primitive root; properly, to pound, i.e. smite; by implication (as if beating out, and thus expanding) to disperse; also, to thrust off, down, out or upon (inclusively, **reject, let alone, permit, remit, etc.):–****cast off, drawn, let fall, forsake, join (battle), leave (off), lie still, loose, spread (self) abroad, stretch out, suffer.
And in GREEK: Result of search for “Loose”:
142. airo ah’-ee-ro a primary root; to lift up; by implication, to take up or away; figuratively, to raise (the voice), keep in suspense (the mind), specially, to sail away (i.e. weigh anchor); by Hebraism (compare 5375)
to expiate sin:–away with, bear (up), carry, lift up, loose, make to doubt, put away, remove, take (away, upBy Jesus to peter and the Apostles.
NOTICE and READ very carefully Matt. 16:19… I [Jesus] give to you Peter [my futrure popes] the [all of them’] “KEY’S TO HEAVEN!”
Infallibility has existed from the time of this GRANTED authority by Christ to Peter. The fact that was was not defined, in no way presumes it was not understood, accepted and applied by the Fathers.
Or Irenaeus who was a disciple of Polycarp who was a disciple of St John. Irenaeus wrote
“we do put to confusion all those who, in whatever manner, whether by an evil self-pleasing, by vainglory, or by blindness and perverse opinion, assemble in unauthorized meetings; [we do this, I say,] by indicating that tradition derived from the apostles, of the very great, the very ancient, and universally known Church founded and organized at Rome by the two most glorious apostles, Peter and Paul; as also [by pointing out] the faith preached to men, which comes down to our time by means of the successions of the bishops. For it is a matter of necessity that every Church should agree with this Church, on account of its pre- eminent authority everywhere, inasmuch as the apostolic tradition has been preserved continuously by those [faithful men] who exist everywhere.”
God’s continued Blessing friends,
Pat