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

Deuteronomy 26:3

And thou shalt come to the priest who shall be in those days, and thou shalt say to him, I testify this day to the Lord my God, that I am come into the land which the Lord sware to our fathers to give to us.

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