The earth and all the inhabitants thereof are dissolved: I bear up the pillars of it. Selah.
The earth and all the inhabitants thereof are dissolved - figuratively describing the political disorganisation of the kingdoms by the Assyrian conqueror. So Psalms 46:2; Psalms 46:6-7 uses the same figure of the same event, ultimately to be fulfilled before Christ's coming (Luke 30:25-27; Isaiah 24:19-23).
I bear up the, pillars of it - `I have weighed the pillars of it' (Hengstenberg). The Hebrew х tikan (H8505)] means literally to weigh by exact weight and measure, and so to consolidate and to compact firmly: as God did at creation (Job 38:4-7; 27:25; Isaiah 40:5; Isaiah 40:21). I, who called forth the world into its beautiful order at creation from the previous chaos, can and will also bring it back to order from its present disorganization.