Deuteronomy 16:14-17

LXX2012(i) 14 And you shall rejoice in your feast, you, and your son, and your daughter, your man-servant, and your maidservant, and the Levite, and the stranger, and the orphan, and the widow that is in your cities. 15 Seven days shall you keep a feast to the Lord your God in the place which the Lord your God shall choose for himself; and if the Lord your God shall bless you in all your fruits, and in every work of your hands, then you shall rejoice. 16 Three times in the year shall all your males appear before the Lord your God in the place which the Lord shall choose in the feast of unleavened bread, and in the feast of weeks, and in the feast of tabernacles: you shall not appear before the Lord your God empty. 17 Each one according to his ability, according to the blessing of the Lord your God which he has given you.