EXPOSITION
This psalm, attributed (see title) to the "sons of Korah," or the Korahite Levites (see 1 Chronicles 26:1; 2 Chronicles 20:19), describes the blessedness of their position as dwellers in the house of God, and keepers of its thresholds. Its date is uncertain, but must fall earlier than the Captivity, since the temple is standing (Psalms 84:1-4, Psalms 84:10), and there is an anointed king upon the throne (Psalms 84:9).
The psalm falls into three equal stanzas or strophes, each of four verses, the ends of the first and second stanzas being shown by the pause mark, "selah."