Shlomo Ganzfried

"It is an affirmative command to give tzedaka to the poor of Israel. ... Anyone who sees a poor man begging alms and turns away his glance from him and does not give him tzedaka transgresses a negative command, as it is said, "You shall not harden your heart nor shut your hand to your needy brother" (Deuteronomy 15:7)."

"A man should also take heart that life is like a revolving wheel, and in the end he or his son or his son's son may be reduced to taking tzedaka. He should not think, therefore, "How shall I diminish my property in order to give to the poor." Instead, he should realize that his property is not his own, but only deposited with him in trust to do with as the Depositor (God) wishes."