You done of good job of commenting on the first hour of the video. Well said.
The second hour is quite different from the first. It is only Bp. Williamson who is interviewed in the second hour, and much of the topic is on sedevacantism. The interviewer leans toward sedevacantism. Other topics include the novus ordo, the new rite of ordination and consecration, eucharistic miracles in the novus ordo, and how to possibly find a good old-rite priest in the conciliar church, etc. Good food for thought, IMO.
It is very interesting what Msgr. Williamson says regarding the ambiguity in the new rite of episcopal consecration (at 1:16:24 - 1:18:01), and the sedevacantist accusation of invalidity.
He notes the principle
significatio ex adjunctis (or as Msgr. Williamson states it,
determinatio ex adjunctis), which basically says in sacramental theology "an ambiguity is settled by immediate context." Meaning, it is conceded that "
spiritus principalem" is ambiguous. Nevertheless, the immediate context removes the ambiguity where the word bishop (
episcopus) closely follows. The conclusion therefore, is that, as the ambiguity does not survive, the form is valid.
Explaining this principle, he cites Michael Davies' book
The Order of Melchisedech, which in turn cites Fr. Francis Clark in Appendix I:
"The sacramental signification of an ordination rite is not necessarily limited to one phrase or formula, but can be clearly conveyed from many parts of the rite. These other parts could thus contribute, either individually or in combination, to determining the sacramental meaning of the operative formula in an unambiguous sense. Thus the wording of an ordination form, even if not specifically determinate in itself, can be given the required determination from its setting (
ex adjunctis) that is, from the other prayers and actions of the rite, or even from the connotation of the ceremony as a whole in the religious context of the age."
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The Catholic Church and Anglican Orders, F. Clark, S.J. (CTS, 1962), p.21.