It is the power of God (dunami qeou estin). This Paul knew by much experience. He had seen the dynamite of God at work. To the Jew first, and also to the Greek (Ioudaiwi te prwton kai Hellhni). Jesus had taught this ( John 4:22 ; John 10:16 ; Luke 24:47 ; Acts 1:8 ). The Jew is first in privilege and in penalty ( Romans 2:9 ). It is not certain that prwton is genuine, but it is in Romans 2:9 .