It’s metanoia [the Greek word for repentance, meaning “change of mind”] It is a radical change of the way we perceive God, the way we perceive ourselves, the way we preserve the cosmos. It’s a radical reorientation.

I Write:

Luk 15:7 I say unto you, that likewise joy shall be in heaven over one sinner that repenteth, more than over ninety and nine just persons, which need no repentance.

Repentance means:

G3341
μετάνοια
metanoia
met-an’-oy-ah
From G3340; (subjectively) compunction (for guilt, including reformation); by implication reversal (of [another’s] decision): – repentance.

Being SINNERS, we MUST REFORM our ways! NOW we are guilty of transgressing the Law of God.
In our Calling, we MUST Learn to Walk Like Minded As Jesus. In Order To Do That, we Must REPENT:

Repent means:

G3340
μετανοέω
metanoeō
met-an-o-eh’-o
From G3326 and G3539; to think differently or afterwards, that is, reconsider (morally to feel compunction): – repent.

We MUST think differently! Reconsider our Ways!
Our Way of Living Leads to Death! We Must OBEY ALL Of The Commandments of God, To Walk In The Righteousness of The Law, Like Paul Began to do, when He received his Calling.

Rom 8:1 There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit.
Rom 8:2 For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death.
Rom 8:3 For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh:
Rom 8:4 That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit.