Glossa Ordinaria
Catena Aurea · Matthäusevangelium 5
And if thy right eye offend thee, pluck it out, and cast it from thee: for it is profitable for thee that one of thy members should perish, and not that thy whole body should be cast into hell. And if thy right hand offend thee, cut it off, and cast it from thee: for it is profitable for thee that one of thy members should perish, and not that thy whole body should be cast into hell.
(non occ.) Because we ought not only to avoid actual sin, but even put away every occasion of sin, therefore having taught that adultery is to be avoided not in deed only, but in heart, He next teaches us to cut off the occasions of sin.