Halakhah sobre Jeremías 3:25

"Indeed we have sinned". Even though the viddui was composed in accordance with the 'aleph bet' it is said at the beginning "we have sinned" before the rest of the confessions as it says Midrash Tanchuma "the people came before Moses and said 'we have sinned'" because they said "we have sinned" they were forgiven immediately. And it says in another place [Midrash Tanchuma Warsaw ed. Parshat Balak 10] that "anyone who sins and says 'I have sinned' an angel is not permitted to harm them. There are those who interpret 'aval' to mean 'alas' we have sinned and there are those who interpret it as 'indeed we have sinned' (Gen. 42:21). "We and our ancestors" is in the manner of "confessing the sins that we Israelites have committed against You, sins that I and my father’s house have committed." (Nehemiah 1:6) and in the manner of "stood and confessed their sins and the iniquities of their fathers" (Nehemiah 9:2). And it is written "For we have sinned against the LORD our God" (Jeremiah 3:25). [He then goes on to give a citation every word in the Viddui]