Psalms 99:8

“Thou answeredst them, O Lord our God - The reference here is to God as “our” God; that is, the language used by those who now worship him is designed to give encouragement in approaching his throne. The God that “we” worship is the same that “they” worshipped; and as he answered them, we may feel assured that he will answer us. Thou wast a God that forgavest them - They were not perfect; they were sinners; they often offended thee, and yet thou didst answer them, and show them mercy. Though thou tookest vengeance - Though thou didst manifest thy displeasure at their misconduct; though thou in thy judgments didst show that thou wast displeased with them; nevertheless thou didst answer them.…”

“Them - The intercessors before mentioned. Forgavest - The people for whom they prayed, so far as not to inflict that total destruction upon them which they deserved; Next: Psalms Chapter 101”

“thou wast: Psa 89:33; Num 14:20; Deu 9:19; Jer 46:28; Zep 3:7 though: Exo 32:2, Exo 32:34, Exo 32:35; Num 11:33, Num 11:34, Num 14:20-34, Num 20:12, Num 20:24; Deu 3:26, Deu 9:20 their inventions: Ecc 7:29; Rom 1:21 Psalms 99:9”