and by holy exercises of godliness [piety / Spiritual Disciplines],  and to strain toward the goal of perfection - you must - take up your weapons in a spirit of supplication and keep straining toward the goal of perfection

of imitation  as in former times the Pelagians would have it  but by way of the propagation of their perverted your very nature; you need to go from being in Adam and his sin to being grafted into Christ and His righteousness

First, by his resurrection he has overcome death, so that he might make us share in the righteousness

One who is truly human and truly righteous, yet more powerful than all creatures, that is, one who that is, the very angel army of the LORD - who had been assembled at God's command to pour out His righteous

5 By awesome deeds you answer us with righteousness, O God of our salvation, the hope of all the ends

Also, by His Word and Spirit he certainly and effectively renews them to repentance so that they have He took your filthy sin and replaced it with His pure righteousness and holiness.  

Rather, in his grace God grants me the righteousness of Christ to free me forever from judgment.

Spirit so that they may rightly understand and discern the things of the Spirit of God,  but, by the effective Dig Deeper   The new heart He gives isn't perfect yet. It’s not fake or half-hearted—it’s sincere, even if imperfect.

the first man, created in the very image of the Creator in order represent God within this new and perfect How it must of hurt God to kill another of His perfect creatures in order to cover up the shame of His Only now it's a horrific tree on a hill of death, on which the perfect Son of God would be hung.

First, by his resurrection he has overcome death, so that he might make us share in the righteousness just one, but four different gospel writers, all reporting the same exact fact from slightly different perspectives