Isaiah 5:16

Exalted in judgment. That is, honored and vindicated in His acts of justice. Sin ultimately results in humiliation, but in the end, righteousness and justice bring honor and glory. The acts of the Lord are such as to bring Him honor and glory before all the universe.

Sanctified in righteousness. Literally, “the holy God shows [Himself] holy in righteousness.” God’s righteous dealings with men prove Him to be holy in character. God’s people are to become like Him in character. Israel had lost sight of the fact that God is holy, and accordingly failed to understand either the importance or the meaning of righteousness. Conscious himself of God’s exalted character, Isaiah had the constant burden that Israel might also become holy and righteous. This ideal he keeps ever before them.