'Feasts' in the Bible

Like godless jesters at a feast,They gnashed at me with their teeth [in malice].

May their table [with all its abundance and luxury] become a snare [to them];And when they are in peace [secure at their sacrificial feasts], may it become a trap.

Blessed and happy are the people who know the joyful sound [of the trumpet’s blast]!They walk, O Lord, in the light and favor of Your countenance!