Ancient Israel celebrated The Feast of Tabernacles & Ingathering by dwelling in booths. This feast is actually 2 holy convocations that occur at the same time and take place on the 15th day of the seventh month, Tisri, to the 22nd day of the month. The first and eighth days are Sabbaths and Holy Convocations. The Feast of Tabernacles & Ingathering is the third of three great feasts commanded to be kept by God (Leviticus 23:33-44).