Sirach 30:12

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.

Sirach 30:12 In-Context

10 Laugh not with him, lest thou have sorrow with him, and lest thou gnash thy teeth in the end.

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.