וֶאֱלִישָׁע֙ הַנָּבִ֔יא קָרָ֕א לְאַחַ֖ד מִבְּנֵ֣י הַנְּבִיאִ֑ים וַיֹּ֨אמֶר ל֜וֹ חֲגֹ֣ר מָתְנֶ֗יךָ וְ֠קַח פַּ֣ךְ הַשֶּׁ֤מֶן הַזֶּה֙ בְּיָדֶ֔ךָ וְלֵ֖ךְ רָמֹ֥ת גִּלְעָֽד׃
And Elisha the prophet called one of the sons of the prophets, and said unto him: ‘Gird up thy loins, and take this vial of oil in thy hand, and go to Ramoth-gilead.
Rashi on II Kings
Elisha the prophet called, etc. At the same time that Yehorom was ill in Yizre’el.
Rashi on II Kings
One of the prophets’ disciples. It was Yonah son of Amitai.
Rashi on II Kings
“Gird you loins.” Every “girding of the loins” is an expression of hurry1See above 4:29, and Shemos 12:11. [and] might; because he was sent on a perilous mission (he needed to hurry).2Even though one who performs a mitzvah is ordinarily immune from any harm befalling him, this does not apply to exceptionally dangerous activities such as this. See Maseches Chulin 142a.