42:18-25 Observe the call given to this people, and the character given of them. Multitudes are ruined for want of observing that which they cannot but see; they perish, not through ignorance, but carelessness. The Lord is well-pleased in the making known his own righteousness. For their sins they were spoiled of all their possessions. This fully came to pass in the destruction of the Jewish nation. There is no resisting, nor escaping God's anger. See the mischief sin makes; it provokes God to anger. And those not humbled by lesser judgments, must expect greater. Alas! how many professed Christians are blind as the benighted heathen! While the Lord is well-pleased in saving sinners through the righteousness of Christ he will also glorify his justice, by punishing all proud despisers. Seeing God has poured out his wrath on his once-favoured people, because of their sins, let us fear, lest a promise being left us of entering into his rest, any of us should be found to come short of it.

21. his righteousness—not His people's, but His own; Isa 42:24 shows that they had no righteousness (Isa 45:24; 59:16). God is well pleased with His Son ("in whom My soul delighteth," Isa 42:1), "who fulfils all righteousness" (Mt 3:15) for them, and with them for His sake (compare Isa 42:6; Ps 71:16, 19; Mt 5:17; Ro 10:3, 4; Php 3:9). Perhaps in God's "righteousness" here is included His faithfulness to His promises given to Israel's forefathers [Rosenmuller]; because of this He is well pleased with Israel, even though displeased with their sin, which He here reproves; but that promise could only be based on the righteousness of Messiah, the promised seed, which is God's righteousness.