John 6:68

To whom shall we go? Contrast these words with Peter’s statement on another occasion, Luke 5:8.

Words of eternal life. Although Peter doubtless did not yet comprehend fully the spiritual nature of Christ’s kingdom, nevertheless his declaration here shows that he had begun to have insight into the fact that the words Jesus had spoken were indeed the key to eternal spiritual life.

An ancient Jewish commentary describes the words that God spoke from Sinai as “words of life” (Midrash Rabbah, on Ex. 20:2, Soncino ed., p. 343). Peter’s use of a similar term here to refer to what Jesus had just said, together with his recognition of Jesus as the Messiah immediately afterward (v. 69), reveals that he realized the divine source of Jesus’ words.