Deuteronomy 16:16

Empty. All were bound to make some offering, which was left to their option, and thus the festivity was much increased, by the abundance of all things; so that all might find a particular pleasure in being present at these feasts, even though they were not influenced by sentiments of piety and of religion. See Exodus xxiii. 15. (Calmet) --- While the masters of families were from home, thrice in the year, God protected their houses and children from the incursions of enemies, so that they were never more secure. (Sanctius) (Tirinus)