Isaiah chapter 40, vs 10 God speaking

… the LORD ( YHVH ) God comes with might … His arm rules for Him … His reward is with Him … and … His recompense is before Him … 

40:10 הנה אדני יהוה בחזק יבוא וזרעו משלה לו הנה שכרו אתו ופעלתו לפניו

… the English noun … recompense … is Hebrew noun … PEULLAH …  פְעֻלָּה  … this noun can be found with quite a few spelling variations in the Hebrew of the Old Testament including … וּפְעֻלָּת֖וֹ וּפְעֻלָּתִ֖י ופעלתו ופעלתי לִפְעֻלַּתְכֶֽם לִפְעֻלָּתֵךְ֙ לִפְעֻלּ֣וֹת לפעלות לפעלתך לפעלתכם פְּעֻלַּ֣ת פְּעֻלַּ֥ת פְּעֻלָּתוֹ֙ פְּעֻלֹּ֣ת פְעֻלַּת פְעֻלָּתָ֛ם פְעֻלָּתָם֙ פעלת פעלת פעלתו פעלת  … interesting … Strong# Hebrew 6468 … the best literal meanings include … recompense … or … a defined task of work or labor … the root of PEULLAH is Hebrew verb … PAAL …  פָעַל  … Strong# Hebrew 6466 … the best literal meanings include … to do something very specific … or … to make something very specific … in our analysis … for Isaiah chapter 10 vs 10 … the VAV as both a prefix and suffix … adds the emphasis of the time period of this reference in Isaiah … that the LORD ( YHVH ) is coming to do something very specific that will be quite a bit of action for quite a few people … 

Isaiah chapter 61, vs 8 God speaking

… I the LORD ( YHVH ) love justice … I hate robbery and wrongdoing … I will faithfully give them their recompense … and … I will make an everlasting covenant with them …

61:8 כי אני יהוה אהב משפט שנא גזל בעולה ונתתי פעלתם באמת וברית עולם אכרות להם

Isaiah chapter 62, vs 11 God speaking

… the LORD ( YHVH ) proclaims to the ends of the earth … say to the daughter of Zion … your salvation comes … see … His reward is with Him … and … His recompense goes before Him … 

62:11 הנה יהוה השמיע אל-קצה הארץ אמרו לבת-ציון הנה ישעך בא הנה שכרו אתו ופעלתו לפניו