'Seventh Year' in the Bible

Take thou heed to thyself lest there be something near thine abandoned heart, saying - Drawing nigh, is the seventh year the year of release, and so thine eye be evil, against thy needy brother, and thou give not unto him, - and he cry out against thee unto Yahweh, and it become in thee a sin!

When thy brother a Hebrew man (or a Hebrew woman) selleth himself unto thee, then shall he serve thee six years, - and in the seventh year, shalt thou let him go out free from thee;