Part II: Questions about The Ten Commandments
65. Q. Can any man keep these ten commandments?
A. No mere man, since the fall of Adam, ever did or can keep the ten commandments perfectly.
(Click through to read scriptural proof.)
Who can say, “I have made my heart pure;I am clean from my sin”?
Surely there is not a righteous man on earth who does good and never sins.
Now we know that whatever the law says it speaks to those who are under the law, so that every mouth may be stopped, and the whole world may be held accountable to God. For by works of the law no human being will be justified in his sight, since through the law comes knowledge of sin.
For whoever keeps the whole law but fails in one point has become accountable for all of it.
If we say we have no sin, we deceive ourselves, and the truth is not in us.
If we say we have not sinned, we make him a liar, and his word is not in us.
Scripture quoted from the English Standard Version.
Taken from A Catechism for Girls and Boys found here.