You might be thinking that no one is righteous, but that is out-of-context. Find out what you're not being taught: Righteousness is measured. Do you measure up?
"Is it such a fast that I have chosen? a day for a man to afflict his soul? is it to bow down his head as a bulrush, and to spread sackcloth and ashes..." Many Christians think that this scripture means that fasting is unprofitable, religious, and legalistic.
What does the Bible mean when it talks about ungodly men turning the grace of our God into lasciviousness? Read why it's so profuse in our churches today.
"...he might trust in the flesh, I more..."
Many Christians think Paul is boasting in his sin or weaknesses and confessing that sin is a hopeless condition until Christ returns.
Read how preachers are prostituting grace and contributing to end times apostasy. Using grace as an excuse to live an unrepentant, or lazy, "We'll never be perfect" lifestyle, is not what our Lord intended.
Many Christians think self-righteousness means that someone is highly religious. However, God doesn't hate pure religion or a strict manner of holy doctrine nor does the Bible tell us to despise it. The Bible gives us four, main examples of self-righteousness.