Deuteronomy 15:8-9

8but thou shalt open thy hand bountifully unto him, and shalt certainly lend him on pledge what is sufficient for his need, [in that] which he lacketh.

9Beware that there be not a wicked thought in thy heart, saying, The seventh year, the year of release, is at hand; and thine eye be evil against thy poor brother, and thou givest him nought; and he cry against thee to Jehovah, and it be sin in thee.