'We Have Sinned' in the Bible

And Aaron said to Moses, Oh, my lord, I beg you, do not lay upon us the sin in which we have done foolishly, and in which we have sinned.

And they rose up early in the morning and went up to the top of the mountain, saying, Lo, we are here, and will go up to the place which Jehovah has promised, for we have sinned.

And the people came to Moses and said, We have sinned, for we have spoken against Jehovah and against you. Pray to Jehovah that He take away the serpents from us. And Moses prayed for the people.