A.T. Robertson Commentary Acts 4:12

"And in none other is there salvation: for neither is there any other name under heaven, that is given among men, wherein we must be saved." — Acts 4:12 (ASV)

Salvation (η σωτηρια). The Messianic salvation as in 5:31; 17:11 and as Jesus meant in Joh 4:22. It is amazing to see Peter speaking thus to the Sanhedrin and proclaiming the necessity of salvation (δε σωθηνα) in the name of Jesus Christ and in no other. If this was true then, it is true today. There is no second (ετερον) name to go beside that of Jesus in India, China, Japan, or America.