Lev Leviticus3. Mooseksen, chapterluku Book of LeviticusKolmas Mooseksen kirja, chapterluku 25

Count seven ‘sabbaths’ of years, in other words, seven times seven years, so that the seven sabbaths of years come to forty-nine years. Then blow the trumpet all through the country on the tenth day of the seventh month, which is the Day of Atonement. Make sure this signal is heard throughout your whole country. Lev 23:27