November 15, 40 days before the Feast of the Nativity of Christ, we Orthodox begin the Nativity Fast. We find in the Book of Tobit the following wisdom about charity, which is an essential part of any fast, and is much in the spirit of the Christmas season.
“Revere the Lord all your days, my son, and refuse to sin or to transgress his commandments. Live uprightly all the days of your life, and do not walk in the ways of wrongdoing; for those who act in accordance with truth will prosper in all their activities. To all those who practice righteousness give alms from your possessions, and do not let your eye begrudge the gift when you make it. Do not turn your face away from anyone who is poor, and the face of God will not be turned away from you. If you have many possessions, make your gift from them in proportion; if few, do not be afraid to give according to the little you have. So you will be laying up a good treasure for yourself against the day of necessity. For almsgiving delivers from death and keeps you from going into the Darkness. Indeed, almsgiving, for all who practice it, is an excellent offering in the presence of the Most High.” (Tobit 4:5-11)