Treasury of Scripture Knowledge
Summary
If we say that we have no sin, we deceive ourselves, and the truth is not in us.
General references
Bible References
Say
1 John 1:6
If we claim to share a relationship with God and yet live in darkness [i.e., in a sinful way], we are lying and are not living a truthful life.
1 John 3:5
But, you [should] know that Christ appeared [on earth] to take away [our] sins, and that there is no sin in His life [See II Cor. 5:21].
Romans 3:23
for everyone has sinned and falls short of God's glory [i.e., His approval, or His perfect character].
James 3:2
For we all make mistakes in many areas [of life]. If anyone does not make a mistake in what he says, he is a perfect person, capable of keeping a tight rein on his whole life also.
We deceive
1 Corinthians 3:18
No one should fool himself. If any person among you thinks he is smart, by human standards, he should become a "fool," so that he can become [really] wise.
Galatians 6:3
For any person who thinks he is someone [important], when he is really nothing, is self-deceived.
2 Timothy 3:13
But evil people and impostors will go from bad to worse [in their behavior], deceiving people and being deceived by them.
James 1:22
But you should not deceive yourselves by just listening [to God's word] instead of doing what the word teaches.
2 Peter 2:13
They suffer wrong themselves for doing wrong to other people. They consider it [especially] pleasurable to carry on their drunken revellings, [even] during the daytime. They become blots and blemishes [i.e., like spoiled food] in your fellowship meal, as they revel in their deceitful behavior.
General references
Hebrews 8:12
For I will be merciful to their wickedness [i.e., by forgiving them] and I will not remember their sins anymore."