Quoting Commentary for I Kings 19:21

shall rejoice over them (יְשֻׂשׂוּם) This is usually the sign of the direct object, inappropriate here in the case of an intransitive verb. (like יָשׂוּשׂוּ מֵהֶם, shall rejoice from them). Comp. (Jer. 10:20) “My sons have gone away from me (יְצָאֻנִי).” Also, (I Kings 19:21) “He cooked the meat for them (בִּשְּׁלָם),” equivalent to בִּשֵּׁל לָהֶם, “He cooked the meat for them.”

Similarly, in Melachim I 19:21, Elisha expresses his complete commitment to Eliyahu HaNavi and simultaneously demonstrates that his style will be different. On the one hand, he slaughters a dozen pairs of oxen and uses the plowing implements (see Radak) as fuel to cook the meat. Elisha permanently and irretrievably burns the bridges to his past life of affluence. There is now no way back— he locks himself into a full commitment to Eliyahu HaNavi. His opening act has to be dramatic and complete, or else he will look at the long road ahead, and quickly turn back.

You have given me. The word נְתַתָּנִי is the same as נָתַתָּ לִי, as in: (the preposition לִי is missing and seems to be like a direct object. Rashi will offer similar examples of this structure.) They could not speak speak to him peacefully.²⁴See Bereishis 37:4. There too the word דַבְּרוֹ is the same as דַבֵּר אֵלָיו, speak to him. ‘My children have gone away from me.’²⁵See Yismiyahu 10:20. There too the word יְצָאְנִי is the same as יָצְאוּ מִמֶנִי. ‘He cooked for them.’²⁶See I Melachim 19:21. There too the word בִשְׁלָם is the same as בִשֵׁל לָהֶם.