John signified that the final stage of Jesus’ ministry was about to begin as Jesus washed His disciples’ feet just before the Passover Festival. The foot-washing episode anticipated the Passover meal, where Jesus taught the disciples to follow His pattern of self-sacrificial love. Passages from the Old Testament cast a framework for understanding Judas’s betrayal of Jesus and Jesus’ command that His disciples love one another.
(1) In John 13:18, Jesus said that Ps 41:9 was fulfilled when Judas betrayed Him. In Psalm 41, the psalmist recounts how his enemies have risen up against him, plotting deceitfully to cause him harm. In Ps 41:9, the psalmist lamented that one of his own friends—one with whom he had enjoyed table fellowship—had turned against him. After Jesus had washed the disciples’ feet and taught them that they should follow His example of loving, servant leadership (John 13:1-17), Jesus said that He was not speaking to all of the twelve gathered there but only to eleven of them. “I know those I have chosen,” Jesus said, “But the Scripture must be fulfilled: ‘The one who eats My bread had raised his heel against Me’” (John 13:18b). Troubled in spirit, Jesus stated plainly that one of the twelve would betray Him. All of the disciples became troubled as well, wondering who it would be. Jesus identified His betrayer by dipping bread into the cup and giving it to Judas. Satan entered Judas and Judas departed the room at night to betray Jesus (Matt 26:20-25//Mark 14:17-21//Luke 22:21-23//John 13:21-30).
(2) In John 13:34-35, Jesus elevated the standard of the love command in Lev 19:18. In Leviticus 19, Moses commanded Israel to represent God in their ethical and cultic practices. They were to have integrity in how they dressed, farmed, and treated one another. In Lev 19:18, Moses said, “Do not take revenge or bear a grudge against members of your community but love your neighbor as yourself.” Jesus’ teaching in John 13:34-35 reflected Lev 19:18 but also expressed the new covenant He would establish in His forthcoming death and resurrection. First, Jesus instituted a new standard for love amongst His followers saying that they should love each other just as He loved them. Second, Jesus stated that as His followers demonstrated sacrificial love for each other, all peoples would recognize that they were followers of Jesus.
(3) In John 14:2-4 and 23, Jesus stated that He and the Father would dwell with those who believed His word and obeyed, reflecting Moses’ statements that God would dwell among His people in Canaan. In Deuteronomy, Moses summarized and applied the covenant God made with Israel on Mount Sinai in Exodus 19-31. In Deut 4:1-9, Moses told Israel that God had given them the law so that they would go into Canaan and dwell there to represent Him in the eyes of the nations. As those nations observed Israel living according to the old covenant, they would recognize God’s presence among His people. In Jesus’ final address, He did not promise His disciples a plot of land on earth, but God’s presence with them wherever they would go, saying, “If anyone loves Me, he will keep My word. My Father will love him, and We will come to him and make Our home with him” (John 14:23). Jesus promised His followers an eternal home in heaven, announcing, “In My Father’s house are many dwelling places; if not, I would have told you. I am going away to prepare a place for you. If I go away and prepare a place for you, I will come back and receive you to Myself, so that where I am you may be also” (John 14:2-4).

John 15-16
In the Farewell Discourse, Jesus prepared His disciples for the formation of a new community. Toward that end, Jesus commanded them to pursue the closest possible union with Himself, to love one another, and to be strengthened by the ministry of the Spirit. In John 15-16, Jesus taught about Himself, the Father, and the Spirit in light of God’s instruction to Israel in the Old Testament.
(1) In John 15:1-17, Jesus described Himself as the vine, reflecting Old Testament imagery that portrayed Israel as the vine God planted in Canaan. God established Israel in Canaan so that they would bear fruit to Him there and reveal His greatness to the surrounding nations (Deut 4:1-8; Psalm 67). In Psalm 80, the psalmist described Israel as the vine that the Lord uprooted from Egypt and planted in Canaan. But the psalmist lamented that the Lord broke down the barriers protecting the vineyard, allowing foreigners to ravage Israel. The psalmist cried out, “Return, God of Hosts. Look down from heaven and see; take care of this vine, the root Your right hand has planted, the shoot that You made strong for Yourself” (Ps 80:14-15). Isaiah prophesied that though God had given Israel all the nation needed to thrive as a fruitful vine, Israel yielded only worthless grapes for the Lord (Isa 5:1-2; 27:2-6). Jesus’ point in the metaphor of the vine was that whereas the descendants of Jacob had failed to maintain covenant loyalty to God’s expectations, He Himself had been faithful. Jesus thus presented Himself as the source of true spiritual fruitfulness. Jesus exhorted His disciples to value Him and His teaching and to bear fruit—not the least of which would be answered prayer (John 15:7-10). Having disclosed Himself and the Father’s will to the disciples, Jesus addressed them as friends and commanded them to love one another (John 15:15-17).
(2) In John 15:25, Jesus quoted Ps 69:4 to express that the world unjustly hated Him and the Father. In Psalm 69, the psalmist cried out to God to deliver him from those who opposed him with mocking and insults and hatred. Because zeal for God’s house consumed the psalmist (Ps 69:9a; John 2:17) and he bore the reproaches of those who spoke against God (Ps 69:9b; Rom 15:3), he cried out to God for help. The psalmist’s opponents hated him without cause (Ps 69:4). Jesus told the eleven that because of identification with Him, the world would hate them (John 15:18-25). The world would treat Jesus’ followers just as they did the Son and the Father—hating them for no reason (John 15:25; Ps 69:4).
(3) In John 15:26-16:15, Jesus described the ministry of the Spirit in accord with the personification of wisdom in Proverbs 8. In Proverbs 8, Solomon portrayed wisdom as God’s active agent revealing the right path for His people. Wisdom’s lips speak truth (Prov 8:7). Wisdom provides instruction from God (Prov 8:10). Wisdom was present when God established the limits of the ocean (Prov 8:27-29; Gen 1:2). Jesus said that the ministry of the Spirit would include counseling the disciples, reminding them of His truth, and convicting the world of sin (John 15:26-16:15). Jesus told the disciples that in light of the difficulty that would come upon them for identifying with Jesus, “It is for your benefit that I go away, because if I don’t go away the Counselor will not come to you. If I go, I will send Him to you” (John 16:7). Jesus promised that the Spirit would declare to the disciples the truth of the Son—which Jesus had received from the Father (John 16:12-15).
Commentary John New Testament