3:14 Just as 1 Moses lifted up the serpent 2 in the wilderness, 3 so must the Son of Man be lifted up, 4 3:15 so that everyone who believes in him may have eternal life.” 5
3:16 For this is the way 6 God loved the world: He gave his one and only 7 Son, so that everyone who believes in him will not perish 8 but have eternal life. 9 3:17 For God did not send his Son into the world to condemn the world, 10 but that the world should be saved through him. 3:18 The one who believes in him is not condemned. 11 The one who does not believe has been condemned 12 already, because he has not believed in the name of the one and only 13 Son of God. 3:19 Now this is the basis for judging: 14 that the light has come into the world and people 15 loved the darkness rather than the light, because their deeds were evil. 3:20 For everyone who does evil deeds hates the light and does not come to the light, so that their deeds will not be exposed. 3:21 But the one who practices the truth comes to the light, so that it may be plainly evident that his deeds have been done in God. 16
[3:14] 4 sn So must the Son of Man be lifted up. This is ultimately a prediction of Jesus’ crucifixion. Nicodemus could not have understood this, but John’s readers, the audience to whom the Gospel is addressed, certainly could have (compare the wording of John 12:32). In John, being lifted up refers to one continuous action of ascent, beginning with the cross but ending at the right hand of the Father. Step 1 is Jesus’ death; step 2 is his resurrection; and step 3 is the ascension back to heaven. It is the upward swing of the “pendulum” which began with the incarnation, the descent of the Word become flesh from heaven to earth (cf. Paul in Phil 2:5-11). See also the note on the title Son of Man in 1:51.
[3:16] 6 tn Or “this is how much”; or “in this way.” The Greek adverb οὕτως (Joutws) can refer (1) to the degree to which God loved the world, that is, to such an extent or so much that he gave his own Son (see R. E. Brown, John [AB], 1:133-34; D. A. Carson, John, 204) or (2) simply to the manner in which God loved the world, i.e., by sending his own son (see R. H. Gundry and R. W. Howell, “The Sense and Syntax of John 3:14-17 with Special Reference to the Use of Οὕτως…ὥστε in John 3:16,” NovT 41 : 24-39). Though the term more frequently refers to the manner in which something is done (see BDAG 741-42 s.v. οὕτω/οὕτως), the following clause involving ὥστε (Jwste) plus the indicative (which stresses actual, but [usually] unexpected result) emphasizes the greatness of the gift God has given. With this in mind, then, it is likely (3) that John is emphasizing both the degree to which God loved the world as well as the manner in which He chose to express that love. This is in keeping with John’s style of using double entendre or double meaning. Thus, the focus of the Greek construction here is on the nature of God's love, addressing its mode, intensity, and extent.
[3:16] 7 tn Although this word is often translated “only begotten,” such a translation is misleading, since in English it appears to express a metaphysical relationship. The word in Greek was used of an only child (a son [Luke 7:12, 9:38] or a daughter [Luke 8:42]). It was also used of something unique (only one of its kind) such as the mythological Phoenix (1 Clement 25:2). From here it passes easily to a description of Isaac (Heb 11:17 and Josephus, Ant. 1.13.1 [1.222]) who was not Abraham’s only son, but was one-of-a-kind because he was the child of the promise. Thus the word means “one-of-a-kind” and is reserved for Jesus in the Johannine literature of the NT. While all Christians are children of God (τέκνα θεοῦ, tekna qeou), Jesus is God’s Son in a unique, one-of-a-kind sense. The word is used in this way in all its uses in the Gospel of John (1:14, 1:18, 3:16, and 3:18).
[3:21] 16 sn John 3:16-21 provides an introduction to the (so-called) “realized” eschatology of the Fourth Gospel: Judgment has come; eternal life may be possessed now, in the present life, as well as in the future. The terminology “realized eschatology” was originally coined by E. Haenchen and used by J. Jeremias in discussion with C. H. Dodd, but is now characteristically used to describe Dodd’s own formulation. See L. Goppelt, Theology of the New Testament, 1:54, note 10, and R. E. Brown (John [AB], 1:cxvii-cxviii) for further discussion. Especially important to note is the element of choice portrayed in John’s Gospel. If there is a twofold reaction to Jesus in John’s Gospel, it should be emphasized that that reaction is very much dependent on a person’s choice, a choice that is influenced by his way of life, whether his deeds are wicked or are done in God (John 3:20-21). For John there is virtually no trace of determinism at the surface. Only when one looks beneath the surface does one find statements like “no one can come to me, unless the Father who sent me draws him” (John 6:44).