If someone breaks a vow unknowingly, some form of expiation is still possible. But for those who transgress knowingly, the sin is sealed like an iron brand; the severest hells await them. If someone will not listen even when told, then teaching them only adds to the sin. What can I do? God has moved me to speak; nothing of mine was at stake. Says Tuka, O people, consider carefully; do whatever brings peace to your heart.