Modern scholars agree that the Kingdom of God was an essential part of the teachings of the historical Jesus. In spite of this, none of the gospels ever record Jesus as having explained exactly what the phrase "Kingdom of God" means. The most likely explanation for this apparent omission is that the Kingdom of God was a commonly understood concept that required no explanation. Jews in Judea during the early first century believed that God reigns eternally in Heaven, but many also believed that God would eventually establish his kingdom on earth as well. This belief is referenced in the first petition of the Lord's Prayer, taught by Jesus to his disciples and recorded in both and : "Your kingdom come, your will be done, on earth as it is in heaven."