I think "jurisdiction" is a very vague concept.
If anyone can point me in the direction of any docuмents or pre-Vatican II manuals that would help me understand it better, I would greatly appreciate that.
Matthew's post is definitely a well-thought out post and intriguing. My own view of jurisdiction can be summed up by "Who sent you?"
The SSPX Bishops and priests were all validly ordained. Archbishop LeFebrvre did mention that he wasn't passing on jusidiction but what does that really mean?
As for SSPXers advising other SSPXers against leaving the SSPX, I see no real harm in that as long as it's not dogmatic.
Jurisdiction is NOT a nebulous concept like "positive energy" or fairy dust.
It is a real authority that comes from God, through his representative the Pope, for the ruling and operation of His Church.
Either you can demand obedience and submission, or you can't. In 1950, your local priest or Bishop could demand such obedience. Only he represented your area in the Church founded by Christ. There were other heretical sects, but none that could claim to be founded by Christ or have His authority. Your only alternative was to leave the Catholic Church.
In the 1960's, however, we could leave IN ORDER TO KEEP the Faith.
Archbishop Lefebvre couldn't give jurisdiction to his bishops, because then the Catholic Church would have TWO bishops of Chicago, for example. Which of them has the real power over the Faithful in the Windy City? A country can only have one king. A diocese can only be ruled by one bishop. If he pretended to give them jurisdiction, he would be cutting himself off completely from the Conciliar Church.
The whole Trad world revolves around "supplied jurisdiction" a.k.a. "supplied authority". Because of the emergency/crisis situation, the good of souls demands that priests get the jurisdiction they need to hear confessions, witness marriages, and say Mass without the permission of the local Conciliar Church authorities. In such times of crisis,
the Church provides the necessary jurisdiction for the needs of her children. Epikeia ("what did the lawgiver really intend") and all that.
"The salvation of souls is the highest law" is the motto of Traditional Catholicism. It is our justification for being.