OET interlinear 2 SAM 19:36

uW Translation Notes:

Note 1 topic: translate-symaction

כִּ⁠מְעַ֞ט יַעֲבֹ֧ר עַבְדְּ⁠ךָ֛ אֶת־הַ⁠יַּרְדֵּ֖ן אֶת־הַ⁠מֶּ֑לֶךְ

(Some words not found in UHB: like,a_little cross_over servant_of,your DOM the,Jordan DOM the=king and=for=what? will,he_reward_me the=king the,reward (the),this )

Going across the Jordan with the king was a symbolic action by which Barzillai showed respect and honor to David, even though he would only go a short distance beyond the river. If it would be helpful to your readers, you could explain the significance of this action in the text of your translation or in a footnote. Alternate translation: [To show respect and honor, according to a little your servant will go across the Jordan with the king]

Note 2 topic: figures-of-speech / rquestion

וְ⁠לָ֨⁠מָּה֙ יִגְמְלֵ֣⁠נִי הַ⁠מֶּ֔לֶךְ הַ⁠גְּמוּלָ֖ה הַ⁠זֹּֽאת

(Some words not found in UHB: like,a_little cross_over servant_of,your DOM the,Jordan DOM the=king and=for=what? will,he_reward_me the=king the,reward (the),this )

Barzillai is using the question form for emphasis. If a speaker of your language would not use the question form for that purpose, you could translate this as a statement or as an exclamation. Alternate translation: [But the king does not need to reward me this reward]

Note 3 topic: writing-poetry

יִגְמְלֵ֣⁠נִי & הַ⁠גְּמוּלָ֖ה הַ⁠זֹּֽאת

will,he_reward_me & (Some words not found in UHB: like,a_little cross_over servant_of,your DOM the,Jordan DOM the=king and=for=what? will,he_reward_me the=king the,reward (the),this )

Barzillai is using a construction in which a verb and its object come from the same root. You may be able to use the same construction in your language to express the meaning here. Alternatively, your language may have another way of saying this. Alternate translation: [reward me so generously]