מי האיש אשר בנה בית... מי האיש אשר נטע כרם... ומי האיש אשר ארש אשה... ילך וישב לביתו
The Torah exempts the fellow who has recently built a home, planted a vineyard, or betrothed a young woman from going into battle. These people will not be good soldiers, since their minds are preoccupied with what they have left at home. Interestingly, if someone owns a huge estate, has many orchards, or has a wife and seven children – he does not go home. Why? Does one who has great wealth and familial responsibilities have less on his mind than the poor fellow who has one small home, brand new vineyard, or has just become united with a woman?…