The immutability of the counsel of God is contrasted with the shifting, fluctuating purposes of man (comp. Proverbs 16:1, Proverbs 16:9; Numbers 23:19; Malachi 3:6). Aben Ezra connects this verse with the preceding, as though it gave the reason for the advice contained therein.
But it is most natural to take the maxim in a general sense, as above Wis. 9:14, "The thoughts of mortal men are miserable, and our devices are but uncertain." The counsel of the Lord, that shall stand; permanebit, Vulgate; εἰς τὸν αἰῶνα μενεῖ, "shall abide forever," Septuagint (Psalms 33:11).