Parshanut do Powtórzonego Prawa 8:24

You will eat and be full and you will bless Hashem. This is thanksgiving, for the great kindness that Hashem gives each individual. However, the truth is that the blessing is not only for this purpose … When a person eats and is full, he is more likely to rebel against Hashem … therefore Hashem commanded that when a person eats and is satisfied he should mentions Hashem and offer Him thanks by blessing Him. In this way the person will remember who gave him the strength to act, and from whose Hand he takes the food to ease his hunger. This explains the connection to the following verse, “Look out for yourself lest you forget Hashem, your God … Lest you eat and be full …”