Sirach 30:10-12

Revised Standard Version

¹⁰ Do not laugh with him, lest you have sorrow with him,
    and in the end you will gnash your teeth.
¹¹ Give him no authority in his youth,
    and do not ignore his errors.
¹² Bow down his neck in his youth,^[a]
    and beat his sides while he is young,
lest he become stubborn and disobey you,
    and you have sorrow of soul from him.^[b]