Chasidut su Salmi 149:71

And behold anyone who is involved in building a house must be concerned with two evils. The first is that one who is involved in building may become poor; and as a result, he will be tight about household expenditures, that he should not also be tight with charity. The second is that his heart not become haughty from the building that he is building ‘with turrets’ – as is written in Noam Meggadim on the verse, “For the Lord delights in His people, etc.” (Psalms 149:4): That even at the time of salvation and much plenty, they are still lowly. This is as it is written (Deuteronomy 7:7), “It is not because you are the most numerous” – [but rather because] you make yourselves small. And that is the meaning of, “When you build a new house, you shall make a parapet for your roof.” It teaches about haughtiness – that one should not raise his heart (but put a limit on it). That is one point. The other is that “you shall not place blood (damim, which can also mean money, though that is clearly not the plain meaning of the verse here) in your house: When they ask money from you for charity, do not say, “I have spent the money that I had to build the house. And the reason for the matter is, “for the faller should fall, etc.” – and a poor person is called a faller, as there is no one to hold his hand.