What does Psalm chapter 84 mean?
The Sons of Korah appear to be a collection of temple singers associated with worship (2 Chronicles 20:19). This psalm may be dedicated to them or written in a style associated with their ministry. Likewise, the term gittiyth may mean a musical pattern or a specific instrument. Other psalms that directly mention the Sons of Korah are Psalms 42, 44—49, 85, and 87—88. Psalms 42 and 43 involve closely related themes.The psalmist is overjoyed at the thought of worshipping in the temple. The song notes that birds make nests near the altars; this would have been literally true, and the psalmist may be wishing he could also live so close to the Lord's presence. Mention of birds may also imply the safety which comes from being close to God (Psalm 84:1–4).
Jewish males were required to attend three designated celebrations in Jerusalem if they lived close enough to make the journey (Deuteronomy 16:16). This psalm speaks of their joy: they get stronger as they come closer, despite their long travels. Even the hardships of the journey seem pleasant because their path leads to Zion: another name for the city of Jerusalem (Psalm 84:5–7).
God is the "LORD of hosts:" the commander of the armies of heaven. The psalmist appeals to God's power and protection for those who honor Him. To be at the center of worship for a single day is better than being anywhere else for years. The Hebrew phrase often interpreted to mean a "doorkeeper" most commonly means standing or laying at the threshold. The psalmist would rather take that humble position than live in relative comfort with those who do not love the Lord (Psalm 84:8–12).