Birkat Hamazon is the grace recited after a meal that includes bread, and it holds a special place among Jewish blessings as one that the Torah itself commands rather than the rabbis, being derived from the verse that directs, after one has eaten and is satisfied, to bless the Lord for the good land he has given. It consists of a sequence of blessings, thanking God who feeds all creatures, for the good land, for Jerusalem, and a fourth blessing for God's goodness, with additions for the Sabbath, festivals and other occasions, and it is preceded, when three or more have eaten together, by a formal invitation to bless. Reciting a full grace after eating, and grounding it in gratitude for the land and for Jerusalem as well as for the food itself, expresses the tradition's characteristic turning of the ordinary act of eating into an occasion for blessing God. It is recited daily in observant households and forms part of the fabric of Jewish table practice.
A widely followed custom of using abbreviated forms when time is short, and the folk practice of singing the grace to festive melodies at celebratory meals such as weddings, show how a legally mandated blessing was absorbed into the emotional texture of communal celebration rather than remaining a purely obligatory recitation. The blessing for Jerusalem within the grace, asking for the rebuilding of the city, has made Birkat Hamazon a text regularly cited in later discussions of how ordinary religious practice keeps hope for Jerusalem present in daily life rather than confined to festival prayers alone.