The Apostle Paul
Romans 15:21BSB·traditional attribution

Rather, as it is written: “Those who were not told about Him will see, and those who have not heard will understand.”

John Calvin Reformed @genevareformer

21. But as it is written, etc. He confirms by the testimony of Isaiah what he had said of the evidence of his apostleship; for in Isaiah 52:15, speaking of the kingdom of Messiah, among other things he predicts, that the knowledge of Christ would be spread among the Gentiles throughout the whole world, that his name would be declared to those by whom it...

Matthew Henry Presbyterian @wholebiblehenry

The apostle here gives some account of himself and of his own affairs. Having mentioned his ministry and apostleship, he goes on further to magnify his office in the efficacy of it, and to mention to the glory of God the great success of his ministry and the wonderful things that God had done by him, for encouragement to the Christian church at Rome, that...

Commenting on Romans 15:17-21

John Gill Reformed Baptist @doctorgill

For which cause also,.... By reason of being employed for so many years, in preaching the Gospel from Jerusalem, round about to Illyricum; taking so large a compass to minister in, and striving to introduce, propagate, and spread the Gospel, where Christ was never named before: I have been much hindered from coming to you; or he had been often, and by many ways, and...