The Mitzvah of Gratitude
In Judaism, we have the practice of giving thanks after each meal. This is called Birkat Hazon, or Grace After Meals. This practice is derived from the passage in our Torah portion that gives the instruction to thank the LORD after eating:
And you shall eat and be full, and you shall bless the LORD your God for the good land he has given you. (Deuteronomy 8:10)