We learn Jesus the Nazarene after being resurrected - eats ἰχθύος "ichthys" (fish) meat in [Luke 24:42-43] : "And they gave him a piece of a broiled fish, and of an honeycomb" (24:42 οἱ δὲ ἐπέδωκαν αὐτῷ ἰχθύος ὀπτοῦ μέρος καὶ ἀπὸ μελισσίου κηρίου) - "And he took it, and did eat before them." (24:43 καὶ λαβὼν ἐνώπιον αὐτῶν ἔφαγεν)
However - YHVH speaking through the prophet Yeshayahu "Isaiah" says His Messianic Kingdom will be Vegetarian in [Isaiah 65:25]
"A wolf and a lamb shall graze together, [ and a lion, like cattle, shall eat straw ] and a serpent-dust shall be his food; they shall neither harm nor destroy on all My holy mount," says YHVH". (זְאֵ֨ב וְטָלֶ֜ה יִרְע֣וּ כְאֶחָ֗ד וְאַרְיֵה֙ כַּבָּקָ֣ר יֹֽאכַל־תֶּ֔בֶן וְנָחָ֖שׁ עָפָ֣ר לַחְמ֑וֹ לֹֽא־יָרֵ֧עוּ וְלֹֽא־יַשְׁחִ֛יתוּ בְּכָל־הַ֥ר קָדְשִׁ֖י אָמַ֥ר יְהֹוָֽה)
As a resurrected Messiah, Why would Jesus the Nazarene eat fish meat in contrast to Isaiah 65:25?