World Wide Study Bible
a Bible passage
23. we—Paul and Apollos.
Christ crucified—The Greek expresses not the mere fact of His crucifixion, but the permanent character acquired by the transaction, whereby He is now a Saviour (Ga 3:1) crucified was the stone on which the Jews stumbled (Mt 21:44). The opposition of Jew and Gentile alike shows that a religion so seemingly contemptible in its origin could not have succeeded if it had not been divine.
unto the Greeks—the oldest manuscripts read "unto the Gentiles."