Cross reference
Genesis 41:27
27 And the seven lean and ill-favored kine that came up after them are seven years, and also the seven empty ears blasted with the east wind; they shall be seven years of famine.
2 Kings 8:1
1 Now Elisha had spoken unto the woman, whose son he had restored to life, saying, Arise, and go thou and thy household, and sojourn wheresoever thou canst sojourn: for Jehovah hath called for a famine; and it shall also come upon the land seven years.
2 Samuel 24:19
19 And David went up according to the saying of Gad, as Jehovah commanded.