On Rev 11:3:
The Lord calls Elijah and Enoch his
two witnesses, who will go before his second coming, just as John went
before the first. (Commentary on Revelation by Berengaudus of Ferrières [trans.
John Litteral; 2026], 201)
On Rev 11:13b:
It does not seem sensible to me
to understand by the city, of which a tenth part fell, the Church
because this passage refers more to the city of the Devil than to the city of God.
Therefore, in the place he says that a tenth part of that city
collapsed, which he previously called the great city, and Sodom and Egypt, and
in whose street the bodies of the saints are said to lie unburied for three and
a half days. And because the number ten often signifies the Law, since the Law
was received through the Decalogue, we can understand by the tenth part that
fell as the Jews, observers of the Law, who, by the preaching of Elijah, will accept
faith in Christ and will fall away and be cut off from the city of the Devil.
(Ibid., 208)
