'Suffering' in the Bible

My little children, for whom I am again in [the pains of] labor until Christ is [completely and permanently] formed within you—

But as for me, brothers, if I am still preaching circumcision [as I had done before I met Christ; and as some accuse me of doing now, as necessary for salvation], why am I still being persecuted [by Jews]? In that case the stumbling block of the cross [to unbelieving Jews] has been abolished.