Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
LXX2012

Deuteronomy 16:15

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.

Read in other translations