Through mighty signs and wonders, by the power of the Spirit of God; so that from Jerusalem, and round about unto Illyricum, I have fully preached the gospel of Christ.
Through mighty signs - `in the power of signs'
And wonders (i:e., glorious miracles), by the power of the Spirit of God - `of the Holy Spirit' (as the true reading would seem to be). This seems intended to account for the efficacy of the word preached, as well as for the working of the miracles which attested it.
So that from Jerusalem, and round about unto (or 'as far as') Illyricum - lying to the extreme northwestern boundary of Greece, and corresponding to the Modern Croatia and Dalmatia (2 Timothy 4:10). See Paley's 'Horae Paulinae,' ch. 2:, No. 4:; and Acts 20:1-2.