Starting from Psalm 42, we entered the second volume. Entering the first volume, we see that the background information is basically written by David's poems. But the background information of this poem tells us that it is an indicative poem of Korah's descendants. We are no strangers to this Cora. On the way out of Egypt, some people were punished by God for opposing Moses. The earth opened its mouth and swallowed them. This is Cora.
As soon as Moses had said all these words, the ground under their feet opened its mouth and swallowed them, their families and all Korah's people and goods. So they and all that belonged to them were thrown alive to the underworld. The mouth of the earth was still closed on them, and they perished from the congregation.
Seeing the above scripture, we may think that all the descendants of Korah have been wiped out. In fact, not all the descendants of Korah were destroyed, which is told us in the following scripture. But Cora's son is not dead. The surviving descendants of Korah actually took on a very important job of guarding the door and singing.
1 Chr 9: 19 Shallum son of Kore, the son of Abiza, the son of Korah, and his brother Korah were in charge of the project and kept the door of the tent of meeting. Their fathers were in charge of the camp of the Lord and guarded the gate of the camp. Chr 20: 19 The Levites of the Kohathites and the Korahites rose up and praised the Lord, the God of Israel, with a loud voice. In David's choir, there is a man named Herman. He is one of the three squad leaders and a descendant of Cora.
Also, Samuel is also a descendant of Korah. It can be seen that God did not hold a grudge against his descendants forever because of Korah's mistake, but because he had been judged, he was thrown into the deep sea forever and was no longer remembered. Cora's descendants are also excellent. They are not angry with God, because God severely punished their ancestors. They know that God's punishment is right. They still praise God with joy and serve God wholeheartedly.
This poem is an indicative poem of Korah's descendants, but we are not sure that this poem was written by Korah's descendants. It may be written by Korah's descendants, or it may be written by David or others, and then sung by Korah's descendants.