Sentence:  Memorable Testimonies against Swearing; / Collected out of the Writings of Gentiles, Jews, and Christians: Some of which were delivered to the World several Ages before "Swear not at all" was written by Matthew, or spoken by Christ.. Which makes Swearing, among Christians, so much the more <WSD>disallowable</WSD>. 
Meaning of the word marked with <WSD> tags:  Not allowable; not to be suffered or permitted; which should not be allowed.