A deep and unbreakable bond exists between God and His people, a relationship where any harm inflicted upon the Israelites is felt as a profoundly personal offense. This prophetic message serves both as a comfort to Israel and a severe warning to the nations of the world, utilizing one of the most powerful images in the Bible.
The prophet announces his mission in connection to a theme of glory, an idea understood in several ways. One approach connects this to a previous divine promise. After God assured He would be a source of glory within Jerusalem, He sends the prophet to announce the punishment of the enemy nations. In this view, merely doing good for the Israelites is not enough; complete glory requires taking revenge on those who harmed them [מצודת דוד, רד״ק]. Alternatively, the mission is undertaken specifically for the sake of the Israelites, to increase and restore their lost honor [רש״י, ביאור שטיינזלץ]. Another perspective suggests the glory refers to the prophet himself. Having been granted honor and prophetic power by God, he is sent to reassure the exiles in Babylon that they need not fear their journey back to Zion [אבן עזרא, ביאור שטיינזלץ]. A further midrashic explanation proposes that this mission only takes place after God finishes rewarding Esau for the deep respect he showed his father [רש״י].
This severe warning is directed toward the nations that plundered and robbed the Israelites, specifically targeting empires like the Babylonians [מצודת דוד, מצודת ציון, ביאור שטיינזלץ]. The climax of the warning lies in the assertion that anyone who strikes Israel is touching the pupil of an eye, the most sensitive and delicate part of the body [מצודת ציון, רד״ק].
Commentators offer two distinct ways to understand whose eye is being struck. The first approach explains that the strike is, metaphorically, against God's own eye. Because such imagery could seem disrespectful toward God, the Sages identified this phrasing as a scribal correction. Conceptually, it should have read as God speaking in the first person about His own eye, but it was written in the third person out of reverence, without the Sages ever actually changing or erasing a single letter from the original text [מנחת שי, מצודת דוד]. The second approach argues that the eye belongs to the attacker. According to this interpretation, whoever harms the Israelites is ultimately destroying themselves. Just as a person who forcefully pokes their own pupil causes themselves severe damage and blindness, the very act of attacking Israel brings an immediate and inevitable punishment down upon the aggressor [רד״ק, מצודת דוד, ביאור שטיינזלץ, מנחת שי].