A father punishes his son because he loves his son. If he did not love the lad he would not punish him but let him have his own way in everything until he comes to harm.
 Martin Luther, Commentary on the Epistle to the Galatians (1535). copy citation

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Author Martin Luther
Source Commentary on the Epistle to the Galatians
Topic love father
Date 1535
Language English
Reference
Note Translated by Theodore Graebner
Weblink http://www.gutenberg.org/files/1549/1549-h/1549-h.htm

Context

“We do not desire the death of our false brethren. We desire that they may turn from their evil ways to Christ and be saved with us. A teacher chastises the pupil to reform him. The rod hurts, but correction is necessary. A father punishes his son because he loves his son. If he did not love the lad he would not punish him but let him have his own way in everything until he comes to harm. Paul beseeches the Galatians to look upon his correction as a sign that he really cared for them. "Now no chastening for the present seemeth to be joyous, but grievous; nevertheless, afterward it yieldeth the peaceable fruit of righteousness unto them which are exercised thereby."” source