Confirmation of the Son of God in the Wilderness
Jesus' temptation is covered in the Gospel of Matthew (see below). Jesus was led by the Spirit in the desert (Luke 4:1). For forty days he was tempted by the devil. He ate nothing during those days. At the end of those day he was hungry (Luke 4:2).
In Luke 4:3-13, the devil sought to deflect Jesus from his divinely appointed Messianic mission. In his victory over Satan, Jesus bound the strong man and proceeded to plunder his possessions (Luke 11:21-22). Luke's account highlights the parallel between Jesus' temptation experience and the experience of Old Testament Israel in the wilderness. Jesus was tempted for 40 days in the desert, while Israel wandered for 40 years in the wilderness (Num. 14:34). But the difference in outcome is also crucial: Jesus was fully obedient to the Father, whereas Israel failed the test of obedience.
The wilderness temptation of Jesus was important for several reasons. First, the account portrays Jesus as a true Israelite that embodied God's standards (see note on 3:22). Jesus came out of Egypt (Matt. 2:15). He endured forty days of temptation in the wilderness like Israel's forty years (v. 2; Num. 14:34). Jesus's normal fast (only water, no food; v. 2) parallels the supernatural forty-day fasts of Moses (Exod. 34:28) and Elijah (1 Kgs. 19:8). These men were representative leaders in Israel. Furthermore, Jesus himself understood his role as the final true Israelite. He resisted each temptation he faced in the wilderness with Scripture. The passages used call for Israel's faithfulness in the wilderness (see notes on vv. 4, 8, 12; see Eph. 6:17). These themes are even stronger in Matthew than in Luke. In all of this, Jesus succeeded where Israel failed. He overcame temptation and proved himself to be God's true Son (see Heb. 4:15; 5:8-9). Second, this temptation showed Jesus's superiority as the new Adam (see note on 3:23-38). The first Adam was created in a state of grace, placed in a lush garden, and given all that he needed (Gen. 2:4-25). Nevertheless, he failed to overcome the Evil One's temptation (Gen. 3:6-7). Conversely, Jesus was weakened by hunger (v. 2). He then endured the harshness of the wilderness while he fought the devil's temptations. He trusted God, relied on his Spirit (v. 1; 3:22), and emerged as God's faithful Son (see Heb. 10:7). Third, the temptation narrative helps tie together the preceding accounts of Jesus's baptism (3:21-22) and genealogy (3:23-38). God affirmed Jesus's sonship at his baptism (3:22). Satan attacked Jesus's sonship in the wilderness (v. 3). Jesus proved his sonship by his victory over temptation. Taken together, these passages undeniably reaffirm Jesus's identity as the Son of God (3:22, 28). Finally, this temptation narrative is important because it had implications beyond Jesus's own life. These were more than ordinary temptations. They were aimed at Jesus's role as the Christ and Adam of a new humanity. During this conflict with the devil, he is overcoming temptation and resisting the devil as our representative head (see Rom. 5:12-21; Eph. 2:14-15). The entirety of God's redemptive plans hung on his victory.