Another Jesus - another Spirit (ἄλλον - ἕτερον)
Rev., another Jesus, a different Spirit. See on Mat 6:24. Another denies the identity; a different denies the similarity of nature. It is the difference of “individuality and kind” (Alford). See on Gal 1:6, Gal 1:7.
Ye might well bear (καλῶς ἠνείχεσθε)
Following the reading which makes the verb in the imperfect tense, putting the matter as a supposed case. The Rev. follows the reading ἀνεχέσθε, present tense, and puts it as a fact: ye do well to bear. Lit., ye endure them finely. The expression is ironical. You gladly endure these false teachers, why do you not endure me?