'Rejoice Before the Lord' in the Bible

On the first day you must take for yourselves branches from majestic trees -- palm branches, branches of leafy trees, and willows of the brook -- and you must rejoice before the Lord your God for seven days.

Only in the presence of the Lord your God may you eat these, in the place he chooses. This applies to you, your son, your daughter, your male and female servants, and the Levites in your villages. In that place you will rejoice before the Lord your God in all the output of your labor.