¹⁷ Those people are zealous to win you over, but for no good. What they want is to alienate you from us, so that you may have zeal for them.^{(A) 18} It is fine to be zealous, provided the purpose is good, and to be so always, not just when I am with you.^{(B) 19} My dear children,^(C) for whom I am again in the pains of childbirth until Christ is formed in you,^{(D) 20} how I wish I could be with you now and change my tone, because I am perplexed about you!