The corresponding letter to this chapter is Zayin- focal point of sustenance and struggle; perfection.
Sh’mu’el Alef 29:1-3 Now the P’lishtim gathered together all their armies to Afek, while the Israelites were camping by the spring which is in Yizre’el. And the lords of the P’lishtim were proceeding on by hundreds and by thousands, and David and his men were proceeding on in the rear with Akhish. Then the commanders of the P’lishtim said, "What are these Hebrews doing here?" And Akhish said to the commanders of the P’lishtim, "Is this not David, the servant of Saul the king of Israel, who has been with me these days, or rather these years, and I have found no fault in him from the day he deserted to me to this day?"
David was found without fault by Akhish the P’lishtim king.
Sh’mu’el Alef 29:4-5 But the commanders of the P’lishtim were angry with him, and the commanders of the P’lishtim said to him, "Make the man go back, that he may return to his place where you have assigned him, and do not let him go down to battle with us, lest in the battle he become an adversary to us. For with what could this man make himself acceptable to his lord? Would it not be with the heads of these men? "Is this not David, of whom they sing in the dances, saying, 'Saul has slain his thousands, And David his ten thousands'?"
The type not unlike the real deal, Yeshua HaMashiach, whom will slay more than his ten thousands.
Revelation 19:11-21 And I saw heaven opened; and behold, a white horse, and He who sat upon it is called Faithful and True; and in righteousness He judges and wages war. And His eyes are a flame of fire, and upon His head are many diadems; and He has a name written upon Him which no one knows except Himself. And He is clothed with a robe dipped in blood; and His name is called The Word of G-d. And the armies which are in heaven, clothed in fine linen, white and clean, were following Him on white horses. And from His mouth comes a sharp sword, so that with it He may smite the nations; and He will rule them with a rod of iron; and He treads the wine press of the fierce wrath of G-d, the Almighty. And on His robe and on His thigh He has a name written, "KING OF KINGS, AND L-RD OF LORDS." And I saw an angel standing in the sun; and he cried out with a loud voice, saying to all the birds which fly in midheaven, "Come, assemble for the great supper of G-d; in order that you may eat the flesh of kings and the flesh of commanders and the flesh of mighty men and the flesh of horses and of those who sit on them and the flesh of all men, both free men and slaves, and small and great. " And I saw the beast and the kings of the earth and their armies, assembled to make war against Him who sat upon the horse, and against His army. And the beast was seized, and with him the false prophet who performed the signs in his presence, by which he deceived those who had received the mark of the beast and those who worshiped his image; these two were thrown alive into the lake of fire which burns with brimstone. And the rest were killed with the sword which came from the mouth of Him who sat upon the horse, and all the birds were filled with their flesh.
Sh’mu’el Alef 29:6-7 Then Akhish called David and said to him, "As the L-RD lives, you have been upright, and your going out and your coming in with me in the army are pleasing in my sight; for I have not found evil in you from the day of your coming to me to this day. Nevertheless, you are not pleasing in the sight of the lords. Now therefore return, and go in peace, that you may not displease the lords of the P’lishtim."
This was wise of the P’lishtim. They could not be sure that David and his men would not turn on them in the heat of battle. They remembered all too well that David, as a young teenager, defeated their champion Golyat.
Sh’mu’el Alef 29:8-11 And David said to Akhish, "But what have I done? And what have you found in your servant from the day when I came before you to this day, that I may not go and fight against the enemies of my lord the king?" But Akhish answered and said to David, "I know that you are pleasing in my sight, like an angel of G-d; nevertheless the commanders of the P’lishtim have said, 'He must not go up with us to the battle.' "Now then arise early in the morning with the servants of your lord who have come with you, and as soon as you have arisen early in the morning and have light, depart." So David arose early, he and his men, to depart in the morning, to return to the land of the P’lishtim. And the P’lishtim went up to Yizre’el.
So by G-d’s grace David did not have to go to battle against his countrymen. This was divine intervention to be sure. Imagine the Anointed next King of Israel attacking his people, it would have been very difficult for the people to accept him as their new king.