The LORD himself had made thee holy

Repentance is necessary for restoration.

The spirit is revived in repentance.

Without repentance, how can there be regeneration?

Regeneration of man is better than any mere engagement in religious rituals.

Right now is time to return to God.

Repentance is about reformation.

The righteousness of God's grace leads to repentance.

To return to God in repentance leads to rebirth.