1 Samuel 28:4

And the Philistines gathered themselves together, and came and pitched in Shunem: and Saul gathered all Israel together, and they pitched in Gilboa.

Cross-reference

1 Samuel 28:15 reveals Saul's distress over the Philistine threat, the very reason he sought the medium.

1 Samuel 31:1 Historical context

1 Samuel 31:1 recounts the battle on Mount Gilboa that directly follows from the Philistine encampment at Shunem.

1 Samuel 29:1 Historical context

1 Samuel 29:1 continues the Philistine military campaign, gathering at Aphek, while the main verse has them at Shunem.

2 Samuel 1:6 Historical context

2 Samuel 1:6 gives an account of Saul's death on Mount Gilboa, the same mountain where Israel camped in the main verse.

2 Samuel 1:21 Historical context

2 Samuel 1:21 is David's lament cursing Mount Gilboa, the site of Israel's camp and Saul's defeat.

2 Samuel 21:12 Historical context

2 Samuel 21:12 mentions the Philistines slaying Saul on Gilboa, the same location as Israel's camp in the main verse.

1 Chronicles 10:1 Historical context

1 Chronicles 10:1 records the same battle at Gilboa, giving the outcome: Israel fled and fell slain there.