Deuteronomy 15:9
Beware that there be not a thought in your wicked heart, saying, The seventh year, the year of release, is at hand; and your eye be evil against your poor brother, and you give him nothing; and he cry to the LORD against you, and it be sin to you.
Nave's Topical Index—AKJV

Deuteronomy 31:10
And Moses commanded them, saying, At the end of every seven years, in the solemnity of the year of release, in the feast of tabernacles,
Nave's Topical Index—AKJV