Sirach 30:13

13 Chastise thy son, and hold him to labour, lest his lewd behaviour be an offence unto thee.

Sirach 30:13 In-Context

11 Give him no liberty in his youth, and wink not at his follies.
12 Bow down his neck while he is young, and beat him on the sides while he is a child, lest he wax stubborn, and be disobedient unto thee, and so bring sorrow to thine heart.
13 Chastise thy son, and hold him to labour, lest his lewd behaviour be an offence unto thee.
14 Better is the poor, being sound and strong of constitution, than a rich man that is afflicted in his body.
15 Health and good estate of body are above all gold, and a strong body above infinite wealth.

The Brenton translation of the Septuagint is in the public domain.