Matthew Henry on Psalms 99:1-5

God governs the world by his providence, governs the church by his grace, and both by his Son. The inhabitants of the earth have cause to tremble, but the Redeemer still waits to be gracious. Let all who hear, take warning, and seek his mercy. The more we humble ourselves before God, the more we exalt him; and let us be thus reverent, for he is holy.