This event happened for more than 3000 years ago. The men of Israel where not allowed to eat according to the oath of Saul. But one man, Jonathan, had not heard this commandment. Read yourself how is eyes where "brightened". Many diabetics experience just the same. When the blood sugar goes low the sight is unclear. But in such a case honey is an excellent thing.

1 Samuel Chapter 14

24Now the men of Israel were in distress that day, because Saul had bound the people under an oath, saying, "Cursed be any man who eats food before evening comes, before I have avenged myself on my enemies!" So none of the troops tasted food.
25The entire army  entered the woods, and there was honey on the ground.
26When they went into the woods, they saw the honey oozing out, yet no one put his hand to his mouth, because they feared the oath.
27But Jonathan had not heard that his father had bound the people with the oath, so he reached out the end of the staff that was in his hand and
dipped it into the honeycomb. He raised his hand to his mouth, and his eyes brightened. [5]
28Then one of the soldiers told him, "Your father bound the army under a strict oath, saying, `Cursed be any man who eats food today!' That is why the men are faint."
29Jonathan said, "My father has made trouble for the country. See how my eyes brightened when I tasted a little of this honey.
30How much better it would have been if the men had eaten today some of the plunder they took from their enemies. Would not the slaughter ofthe Philistines have been even greater?"
31That day, after the Israelites had struck down the Philistines from Micmash to Aijalon, they were exhausted.
32They pounced on the plunder and, taking sheep, cattle and calves, they butchered them on the ground and ate them, together with the blood.
33Then someone said to Saul, "Look, the men are sinning against the LORD by eating meat that has blood in it." "You have broken faith," he said. "Roll a large stone over here at once."
34Then he said, "Go out among the men and tell them, `Each of you bring me your cattle and sheep, and slaughter them here and eat them. Do not sin against the LORD by eating meat with blood still in it.'" So everyone brought his ox that night and slaughtered it there.
35Then Saul built an altar to the LORD; it was the first time he had done this.
36Saul said, "Let us go down after the Philistines by night and plunder them till dawn, and let us not leave one of them alive." "Do whatever seems best to you," they replied. But the priest said, "Let us inquire of God here."
37So Saul asked God, "Shall I go down after the Philistines? Will you give them into Israel's hand?" But God did not answer him that day.
38Saul therefore said, "Come here, all you who are leaders of the army, and let us find out what sin has been committed today.
39As surely as the LORD who rescues Israel lives, even if it lies with my son Jonathan, he must die." But not one of the men said a word.
40Saul then said to all the Israelites, "You stand over there; I and Jonathan my son will stand over here." "Do what seems best to you," the men replied.
41Then Saul prayed to the LORD, the God of Israel, "Give me the right answer."   And Jonathan and Saul were taken by lot, and the men were cleared.
42Saul said, "Cast the lot between me and Jonathan my son." And Jonathan was taken.
43Then Saul said to Jonathan, "Tell me what you have done." So Jonathan told him, "I merely tasted a little honey with the end of my staff. And now must I die?"
44Saul said, "May God deal with me, be it ever so severely, if you do not die, Jonathan."
45But the men said to Saul, "Should Jonathan die--he who has brought about this great deliverance in Israel? Never! As surely as the LORD lives, not a hair of his head will fall to the ground, for he did this today with God's help." So the men rescued Jonathan, and he was not put to death.