¹ sn They still could not believe it. Is this a continued statement of unbelief? Or is it a rhetorical expression of their amazement? They are being moved to faith, so a rhetorical force is more likely here.

¹ sn My name will be great among the nations. In what is clearly a strongly ironic shift of thought, the Lord contrasts the unbelief and virtual paganism of the postexilic community with the conversion and obedience of the nations that will one day worship the God of Israel.

³ sn Sarah’s words play on the name “Isaac” in a final triumphant manner. God prepared “laughter” (צְחֹק, ts^ekhoq) for her, and everyone who hears about this “will laugh” (יִצְחַק, yitskhaq) with her. The laughter now signals great joy and fulfillment, not unbelief (cf. Gen 18:12-15).

¹ sn Jesus now describes the guilt of the world. He came to these people with both words (15:22) and sign-miracles (15:24), yet they remained obstinate in their unbelief, and this sin of unbelief was without excuse. Jesus was not saying that if he had not come and spoken to these people they would be sinless; rather he was saying that if he had not come and spoken to them, they would not be guilty of the sin of rejecting him and the Father he came to reveal. Rejecting Jesus is the one ultimate sin for which there can be no forgiveness because the one who has committed this sin has at the same time rejected the only cure that exists. Jesus spoke similarly to the Pharisees in 9:41: “If you were blind, you would have no sin (same phrase as here), but now you say ‘We see’ your sin remains.”

³ tn “The arm of the Lord” is an idiom for “God’s great power” (as exemplified through Jesus’ miraculous signs). This response of unbelief is interpreted by the author as a fulfillment of the prophetic words of Isaiah (Isa 53:1). The phrase ὁ βραχίων κυρίου (ho brachiōn kuriou) is a figurative reference to God’s activity and power which has been revealed in the sign-miracles which Jesus has performed (compare the previous verse).

⁴ tn There is debate as to exactly what the sin of Moses was. Some interpreters think that the real sin might have been that he refused to do this at first, but that fact has been suppressed from the text. Some think the text was deliberately vague to explain why they could not enter the land without demeaning them. Others simply, and more likely, note that in Moses there was unbelief, pride, anger, impatience—disobedience.

⁴ sn Their sin was unbelief. They could have gone and conquered the area if they had trusted the Lord for their victory. They did not, and so they were condemned to perish in the wilderness. Now, thinking that by going they can undo all that, they plan to go. But this is also disobedience, for the Lord said they would not now take the land, and yet they think they can. Here is their second sin, presumption.

¹ sn The author explicitly states here that Jesus’ Jewish opponents could not believe, and quotes Isa 6:10 to show that God had in fact blinded their eyes and hardened their heart. This OT passage was used elsewhere in the NT to explain Jewish unbelief: Paul’s final words in Acts (28:26-27) are a quotation of this same passage, which he uses to explain why the Jewish people have not accepted the gospel he has preached. A similar passage (Isa 29:10) is quoted in a similar context in Rom 11:8.

¹ sn The name Massah (מַסָּה, massah) means “Proving”; it is derived from the verb “test, prove, try.” And the name Meribah (מְרִיבָה, m^erivah) means “Strife”; it is related to the verb “to strive, quarrel, contend.” The choice of these names for the place would serve to remind Israel for all time of this failure with God. God wanted this and all subsequent generations to know how unbelief challenges God. And yet, he gave them water. So in spite of their failure, he remained faithful to his promises. The incident became proverbial, for it is the warning in Ps 95:7-8, which is quoted in Heb 3:15: “Oh, that today you would listen as he speaks! Do not harden your hearts as in the rebellion, in the day of testing in the wilderness. There your fathers tested me and tried me, and they saw my works for forty years.” The lesson is clear enough: to persist in this kind of unbelief could only result in the loss of divine blessing. Or, to put it another way, if they refused to believe in the power of God, they would wander powerless in the wilderness. They had every reason to believe, but they did not. (Note that this does not mean they are unbelievers, only that they would not take God at his word.)

² tn Or “who commits.” This could simply be translated, “everyone who sins,” but the Greek is more emphatic, using the participle ποιῶν (poiōn) in a construction with πᾶς (pas), a typical Johannine construction. Here repeated, continuous action is in view. The one whose lifestyle is characterized by repeated, continuous sin is a slave to sin. That one is not free; sin has enslaved him. To break free from this bondage requires outside (divine) intervention. Although the statement is true at the general level (the person who continually practices a lifestyle of sin is enslaved to sin) the particular sin of the Jewish authorities, repeatedly emphasized in the Fourth Gospel, is the sin of unbelief. The present tense in this instance looks at the continuing refusal on the part of the Jewish leaders to acknowledge who Jesus is, in spite of mounting evidence.

⁴ tn The verb נָסָה (nasah) means “to test, tempt, try, prove.” It can be used of people simply trying to do something that they are not sure of (such as David trying on Saul’s armor), or of God testing people to see if they will obey (as in testing Abraham, Gen 22:1), or of people challenging others (as in the Queen of Sheba coming to test Solomon), and of the people in the desert in rebellion putting God to the test. By doubting that God was truly in their midst, and demanding that he demonstrate his presence, they tested him to see if he would act. There are times when “proving” God is correct and required, but that is done by faith (as with Gideon); when it is done out of unbelief, then it is an act of disloyalty.

¹ tn The name תַּבְעֵרָה (tavʿerah) is given to the spot as a commemorative of the wilderness experience. It is explained by the formula using the same verbal root, “to burn.” Such naming narratives are found dozens of times in the OT, and most frequently in the Pentateuch. The explanation is seldom an exact etymology, and so in the literature is called a popular etymology. It is best to explain the connection as a figure of speech, a paronomasia, which is a phonetic wordplay that may or may not be etymologically connected. Usually the name is connected to the explanation by a play on the verbal root—here the preterite explaining the noun. The significance of commemorating the place by such a device is to “burn” it into the memory of Israel. The narrative itself would be remembered more easily by the name and its motif. The namings in the wilderness wanderings remind the faithful of unbelief, and warn us all not to murmur as they murmured. See further A. P. Ross, “Paronomasia and Popular Etymologies in the Naming Narrative of the Old Testament,” Ph.D. diss., University of Cambridge, 1982.