Charles H. Spurgeon on Psalms 128:2

Thou shalt eat the labour of thine hands, etc. This must they learn also which are married, that they must labour. For the law of nature requireth that the husband should sustain and nourish his wife and his children. For after that man and wife do know that they ought to fear God their Creator, who not only made them, but gave his blessing also unto his creature; this secondly must they know, that something they must do that they consume not their days in ease and idleness. Hesiod, the poet, giveth his counsel, that first thou shouldest get thee a house, then a wife, and also an ox to till the ground...For albeit that our diligence, care, and travail is not able to maintain our family, yet God useth such as a means by the which he will bless us. —Martin Luther.