'We Have Sinned' in the Bible

So Aaron said to Moses, "Please, my lord, please do not put on us [this] sin [in] which we were foolish and [in] which we have sinned.

They rose early in the morning and went to the top of the mount, saying, "Here we are. We will go up to the place that Yahweh said, because we have sinned."

The people came to Moses and said, "We have sinned because we have spoken against Yahweh and against you. Pray to Yahweh and let him remove the snakes from among us." So Moses prayed for the people.