Sirach 30:11-13

New Revised Standard Version Catholic Edition

¹¹ Give him no freedom 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,
or else he will become stubborn and disobey you,
    and you will have sorrow of soul from him.^[b]
13 Discipline your son and make his yoke heavy,^[c]
    so that you may not be offended by his shamelessness.