And many shall follow their pernicious ways; Greek, their destructions, i.e. those ways of error which are attended with destruction (the effect being put for the cause by a metonymy); and the sense is, that as these false teachers shall bring destruction upon themselves by their heresies; so others, running with them into the same errors, shall fall into the same destruction.
By reason of whom; or, by whom, viz. these false teachers, or their followers, or both.
The way of truth; the gospel, so called, as being the doctrine of saving truth. It is called the way, Act_9:2 19:9 22:4; the way of salvation, Act_16:17; the way of God, Act_18:26.
Shall be evil spoken of; blasphemed, whether by false teachers themselves and their followers, or by others taking occasion by them: see Rom_2:241Ti_6:1Tit_2:5.