Leviticus 25:8
And let seven Sabbaths of years be numbered to you, seven times seven years; even the days of seven Sabbaths of years, that is forty-nine years;
Leviticus 23:15
And let seven full weeks be numbered from the day after the Sabbath, the day when you give the grain for the wave offering;
Genesis 2:2
And on the seventh day God came to the end of all his work; and on the seventh day he took his rest from all the work which he had done.
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