וַיִּקְצֹ֨ף עָלָ֜יו אִ֣ישׁ הָאֱלֹהִ֗ים וַיֹּ֙אמֶר֙ לְהַכּ֨וֹת חָמֵ֤שׁ אוֹ־שֵׁשׁ֙ פְּעָמִ֔ים אָ֛ז הִכִּ֥יתָ אֶת־אֲרָ֖ם עַד־כַּלֵּ֑ה וְעַתָּ֕ה שָׁלֹ֥שׁ פְּעָמִ֖ים תַּכֶּ֥ה אֶת־אֲרָֽם׃ (ס)
And the man of God was wroth with him, and said: ‘Thou shouldest have smitten five or six times; then hadst thou smitten Aram till thou hadst consumed it; whereas now thou shalt smite Aram but thrice.’
Read midrashic interpretation of II Kings 13:19: and classical rabbinic exegesis.