21 It pleased the LORDfor the sake of his righteousness to make his law great and glorious.

Read Isaiah 42:21 Using Other Translations

The LORD is well pleased for his righteousness' sake; he will magnify the law, and make it honourable.
The LORD was pleased, for his righteousness' sake, to magnify his law and make it glorious.
Because he is righteous, the LORD has exalted his glorious law.