15 Once again the Philistines waged war against Israel, and David and his servants went down and fought against the Philistines; but David became exhausted.
2 Samuel 21:15 Cross References - MSB
Joshua 14:10-11
10 Now behold, as the LORD promised, He has kept me alive these forty-five years since He spoke this word to Moses, while Israel wandered in the wilderness. So here I am today, eighty-five years old,
11 still as strong today as I was the day Moses sent me out. As my strength was then, so it is now for war, for going out, and for coming in.
2 Samuel 5:17
17 When the Philistines heard that David had been anointed king over Israel, they all went in search of him; but David learned of this and went down to the stronghold.
2 Samuel 5:22
22 Once again the Philistines came up and spread out in the Valley of Rephaim.
2 Samuel 5:25
25 So David did as the LORD had commanded him, and he struck down the Philistines all the way from Gibeon to Gezer.
1 Chronicles 20:4
4 Some time later, war broke out with the Philistines at Gezer. At that time Sibbecai the Hushathite killed Sippai, a descendant of the Rephaim, and the Philistines were subdued.
Psalms 71:9
9 Do not discard me in my old age; do not forsake me when my strength fails.
Psalms 71:18
18 Even when I am old and gray, do not forsake me, O God, until I proclaim Your power to the next generation, Your might to all who are to come.
Psalms 73:26
26 My flesh and my heart may fail, but God is the strength of my heart and my portion forever.
Ecclesiastes 12:3
3 on the day the keepers of the house tremble and the strong men stoop, when those grinding cease because they are few and those watching through windows see dimly,
Isaiah 40:28-30
28 Do you not know? Have you not heard? The LORD is the everlasting God, the Creator of the ends of the earth. He will not grow tired or weary; His understanding is beyond searching out.
29 He gives power to the faint and increases the strength of the weak.
30 Even youths grow tired and weary, and young men stumble and fall.
Jeremiah 9:23-24
23 This is what the LORD says: “Let not the wise man boast in his wisdom, nor the strong man in his strength, nor the wealthy man in his riches.
24 But let him who boasts boast in this, that he understands and knows Me, that I am the LORD, who exercises loving devotion, justice and righteousness on the earth—for I delight in these things,” declares the LORD.