'We Have Sinned' in the Bible

Jehiel's son Shecaniah, one of Elam's descendants, responded to Ezra: "We have sinned against our God by marrying foreign wives from the people of the land, but even now there is hope in Israel, despite this.

However, the people are numerous and it is the rainy season. We are unable to stand here outside. Furthermore, this business cannot be resolved in a day or two, for we have sinned greatly in this matter.