'On that Day' in the Bible

When the five lords of the Philistines saw it, they returned to Ekron that day.

They gathered to Mizpah, and drew water and poured it out before the Lord, and fasted on that day and said there, “We have sinned against the Lord.” And Samuel judged the sons of Israel at Mizpah.

Now Samuel was offering up the burnt offering, and the Philistines drew near to battle against Israel. But the Lord thundered with a great thunder on that day against the Philistines and confused them, so that they were routed before Israel.

Then it happened when he turned his back to leave Samuel, God changed his heart; and all those signs came about on that day.

Now the men of Israel were hard-pressed on that day, for Saul had put the people under oath, saying, “Cursed be the man who eats food before evening, and until I have avenged myself on my enemies.” So none of the people tasted food.

Saul inquired of God, “Shall I go down after the Philistines? Will You give them into the hand of Israel?” But He did not answer him on that day.

Then David said to Abiathar, “I knew on that day, when Doeg the Edomite was there, that he would surely tell Saul. I have brought about the death of every person in your father’s household.

Thus Saul died with his three sons, his armor bearer, and all his men on that day together.