The death of Saul in 1 Samuel 31 freed David from Saul’s relentless pursuit, a time he poetically described as when “the ropes of death were wrapped around me; the torrents of destruction terrified me” (Ps 18:4). But David had to undergo the full measure of the Lord’s good discipline, through which he would learn to trust in the Lord alone. Once on the throne of Israel David said, “Add days to the king’s life; may his years span many generations. May he sit enthroned before God forever; appoint faithful love and truth to guard him” (Ps 61:6-7).
While David and his troops were with the Philistine King Achish on the front line opposite Israel, some Amalekites had attacked Ziklag (1 Sam 30:1-8). It was a place of refuge for David’s family and a storage place for the plunder of David and his troops (see 1 Sam 27:3-7). David and company returned to Ziklag hoping for a time of respite, but it would not be: “When David and his troops arrived at the town, they found it burned down. Their wives, sons, and daughters had been kidnapped” (1 Sam 30:3). The scene was devastating for all of the troops but David “was in a difficult position because the troops talked about stoning him, for they were all very bitter over the loss of their sons and daughters” (1 Sam 30:6). Yet, “David found strength in the LORD his God” (1 Sam 30:6).
David inquired of the Lord regarding a counterattack on the Amalekites (1 Sam 30:7-8). Even though David and his troops were on mission to rescue their nearest loved ones (1 Sam 30:9-10), one third of them were not able to continue. They came upon an Egyptian man who, as a slave, had been part of the raid on Ziklag (1 Sam 30:11-15). This blessing was a sign of the good that would come as David and his troops avenged the Amalekite aggression. Eventually, “David recovered everything the Amalekites had taken; he also rescued his two wives…David got everything back” (1 Sam 30:18-19). David scattered the blessings of the raid so that the 200 men who remained with the supplies received a share (1 Sam 30:24), a practice which became a statute in Israel. David’s generosity went even beyond this initial provision to the 200: “He sent some of the plunder to his friends, the elders of Judah” (1 Sam 30:26). David’s generosity would later help to solidify David as king in Judah (see 2 Samuel 2).
In 1 Samuel 31, the author turns the reader’s attention back to the battle line between Israel and the Philistines. The encounter was one sided. As a result, “the Philistines fought against Israel, and Israel’s men fled from them. Many were killed on Mount Gilboa” (1 Sam 31:1). After being hit by a Philistine archer, Saul eventually committed suicide and his armor-bearer did the same. This was according to the word of the spirit of Samuel, who one day earlier had prophesied of Saul’s death (see 1 Sam 28:16-19). The Philistines captured Israelite territory and mutilated the bodies of Saul and his sons, placing the armor of the slain in the temples of their idols (1 Sam 31:7-10). The men of Jabesh-Gilead captured the remains of Saul and his sons and buried them (1 Sam 31:11-13).
The demise of Saul in conjunction with David’s political alliance with the elders of Judah cleared the path for David to take the throne. In contrast, King Jesus—the One who would forever sit on David’s throne (Luke 1:30-33)—formed no political alliances to assume His throne, nor was He dependent upon the removal of a previous ruler. Jesus’ place of royalty was earned through the cross and the empty tomb, the means by which He Himself deposed Satan from his position of ruling over humanity (John 12:31; Phil 2:7-11; Col 2:15; Heb 2:14-15).

1 Corinthians 1-4
In 1 Corinthians, Paul used the theology of the Old Testament to confront the glory-seeking leaders in Corinth. The storyline of Scripture had relevance even for these steeped in Roman culture. Their foolish wisdom, unfounded pride, and boasting were not compatible with God’s wisdom and zealous pursuit of glory among His people.
(1) In 1 Cor 1:19, Paul quoted Isa 29:14 to establish that the cross is the means of salvation only for those who are dependent upon God exclusively. Isaiah challenged Judah’s self-sufficiency and willingness to ally themselves with pagan nations so that together they might thwart the rising Assyrian threat. The people of Israel thought themselves wise, crafty, self-sufficient. Isaiah called them foolish. While the Corinthians were boasting in their self-sufficiency and cultural connections, they were implicitly aligning themselves with those who are perishing. The Corinthians were in jeopardy of violating the very wisdom of God, the humility of Jesus. Paul reminded them of God’s posture toward the self-sufficient, saying with Isaiah, “I will destroy the wisdom of the wise, and I will set aside the understanding of the experts” (1 Cor 1:19).
(2) In 1 Cor 1:31, Paul quoted Jer 9:24 to exhort the Corinthians that they must boast only in the Lord. Many in Jeremiah’s day thought themselves secure in the Lord despite their idolatry and the rise of the Babylonian Empire. Jeremiah confronted them for their lack of spiritual wisdom. The people of Judah did not have the insight to boast in the Lord and obey His law. In 1 Cor 1:31, Paul used Jer 9:24 to demonstrate that knowledge of God’s wisdom was the result of the Spirit’s act of revelation, not human greatness. “The one who boasts must boast in the Lord,” Paul declared (1 Cor 1:31). Paul cited Jer 9:24 again in 2 Cor 10:17, asserting that he boasted in the Lord in his ministry to the Corinthians. Paul thus employed Jer 9:24 and its theme of boasting exclusively in the Lord to bookend his correspondence with the Corinthians.
(3) In 1 Cor 2:9, Paul quoted Isa 52:15 to establish a historical precedent for God’s generosity in revealing Himself to humanity. In Isaiah 52, Isaiah spoke of God’s revelation to the rulers of the earth in the day of His servant. Paul understood that day of revelation to have arrived in Christ’s death, resurrection, and exaltation—what the leaders of the ancient world thought foolishness. He wrote, “What no eye has seen and no ear has heard, and what has never come into a man’s heart, is what God has prepared for those who love Him” (1 Cor 2:9). Paul argued that since God freely gave knowledge to the Corinthians by the Spirit, why would they need to align themselves behind this leader or that one, boasting in mere humans? Paul’s use of Isa 52:15 in 1 Cor 2:9 served to correct the Corinthians’ problem of boasting, and the resulting divisions, which had been his concern beginning in 1 Cor 1:10.
(4) In 1 Cor 2:16, Paul quoted Isa 40:13 to establish that those without the Spirit cannot know what God has freely given to His people by the Spirit. Isaiah 40 represented a turning point in the prophet’s argument. The Lord had disciplined His people and would restore them. Isaiah described God’s supremacy over creation and the events of history. Who has known His mind or could direct God (Isa 40:13)? Paul’s point was that since the Corinthians were justified in Christ—and had thus received the Spirit—they were able to evaluate all matters from a spiritual perspective. Their pagan neighbors, on the other hand, would continue to look down on the church so long as those neighbors did not have the Spirit. Paul’s use of Isa 40:13 was thus an implicit warning: stop worrying about what the pagans think of you because they will never understand the church. “We have the mind of Christ,” Paul said (1 Cor 2:16).
(5) In 1 Cor 3:19-20, Paul cited phrases from Job and Psalms to portray God’s wisdom in judging believers in the church. Eliphaz warned Job that since God “catches the wise in their craftiness” (Job 5:13), Job should cease any crafty arguments to vindicate himself before God. In Psalm 94, the psalmist described the Lord as the perfect Judge, fully aware of the secrets of human beings. The psalmist’s phrase, “the Lord knows man’s thoughts; they are meaningless” (Ps 94:11), caught Paul’s attention. Paul warned those boasting in mere humans, and those receiving the praise of mere humans, that no one could simultaneously operate by worldly and spiritual wisdom—despite the fact that the Corinthians thought they could do so.
1 Corinthians Commentary New Testament