"For we know that the law is spiritual, but I am of the flesh, sold under sin. For I do not understand my own actions. For I do not do what I want, but I do the very thing I hate. Now if I do what I do not want, I agree with the law, that it is good. So now it is no longer I who do it, but sin that dwells within me. For I know that nothing good dwells in me, that is, in my flesh. For I have the desire to do what is right, but not the ability to carry it out. For I do not do the good I want, but the evil I do not want is what I keep on doing. Now if I do what I do not want, it is no longer I who do it, but sin that dwells within me."

— Romans 7:14-20

"For whoever keeps the whole law but fails in one point has become guilty of all of it. For he who said, Do not commit adultery, also said, Do not murder. If you do not commit adultery but do murder, you have become a transgressor of the law. So speak and so act as those who are to be judged under the law of liberty."

— James 2:10-12

"You have heard that it was said to those of old, You shall not murder and whoever murders will be liable to judgment. But I say to you that everyone who is angry with his brother will be liable to judgment whoever insults his brother will be liable to the council and whoever says, You fool! will be liable to the hell of fire."

— Matthew 5:21-22

"You have heard that it was said, You shall love your neighbor and hate your enemy. But I say to you, Love your enemies and pray for those who persecute you,"

— Matthew 5:43-44

"You have heard that it was said, You shall not commit adultery. But I say to you that everyone who looks at a woman with lustful intent has already committed adultery with her in his heart."

— Matthew 5:27-28

"You shall not swear falsely, but shall perform to the Lord what you have sworn. But I say to you, Do not take an oath at all, either by heaven, for it is the throne of God, or by the earth, for it is his footstool, or by Jerusalem, for it is the city of the great King. And do not take an oath by your head, for you cannot make one hair white or black. Let what you say be simply Yes or No anything more than this comes from evil."

— Matthew 5:33-37

"You therefore must be perfect, as your heavenly Father is perfect."

— Matthew 5:48