Avinu Malkeinu is a Jewish prayer for forgiveness. It is a Jewish prayer recited during Jewish services on Rosh Hashanah and Yom Kippur, as well on the Ten Days of Repentance from Rosh Hashanah through Yom Kippur. There are many verses to the song but a rough translation of a portion of the supplication goes like this:
Avinu Malkeinu (our Father, our King), we have sinned before you!
Avinu Malkeinu, in Your abundant mercy, cleanse us of our guilt before You.
Avinu Malkeinu, bring us back to You in perfect repentance.
Our Father, our King, be gracious unto us and answer us although we have no merits of our own. Deal with us in righteousness and lovingkindness, and save us.