Background
This Psalm opens with three verses referring to God helping Moses and the children of Israel in times past, in accordance with Exodus theme. The next verse states that God is still King and a deliverer. Then the verse after that says that God will help in the future.
The Psalm includes a title “for the sons of Korah.” Regarding the sons of Korah, I Chronicles 9:19 says: “And Shallum the son of Kore, the son of Ebiasaph, the son of Korah, and his brethren, of the house of his father, the Korahites, were over the work of the service, keepers of the gates of the tabernacle: and their fathers, being over the host of the Lord, were keepers of the entry.” They were responsible for service in the tabernacle and later the Temple.
The Psalm includes a postscript “Shoshannim.” This word means “lilies” can refer to springtime and the Passover Feast.