That we shall be saved (swqhnai). First aorist passive infinitive in indirect discourse after pisteuomen. More exactly, "We believe that we are saved through the grace of the Lord Jesus in like manner as they also." This thoroughly Pauline note shows that whatever hopes the Judaizers had about Peter were false. His doctrine of grace is as clear as a bell. He has lifted his voice against salvation by ceremony and ritualism. It was a great deliverance.