Translation: ESV
Behold, the LORD's hand is not shortened, that it cannot save, or his ear dull, that it cannot hear.
God's power is not lacking. The problem is human sin.
▸Israel's problem is not a lack of God's power.
Israel's problem is not a lack of God's power. His hand is not 'too short' to save, nor is his ear 'too dull' to hear. The problem lies in Israel's sin.
but your iniquities have made a separation between you and your God, and your sins have hidden his face from you so that he does not hear.
Sin is what separates God and humanity.
▸'Your iniquities have made a separation between you and your God'—sin severs the relationship with God.
He put on righteousness as a breastplate, and a helmet of salvation on his head; he put on garments of vengeance for clothing, and wrapped himself in zeal as a cloak.
God first wore this armor—the spiritual armor we put on is God's own.
▸The image of God himself putting on the armor of a warrior.
And a Redeemer will come to Zion, to those in Jacob who turn from transgression, declares the LORD.
The Redeemer-Messiah comes to Zion to save those who repent.
▸'A Redeemer will come to Zion'—the prophecy of the Messiah's coming.