seven years, 1 Chronicles 21:12 -three years; also Septuagint. The Hebrew numeral letters for three and seven were probably very much alike. Hence perhaps mistaken by an ancient scribe. Both maybe right. "seven, or even three. "
advise. consider, or know.
13 So Gad came to David, and told him, and said unto him, Shall seven years of famine come unto thee in thy land? or wilt thou flee three months before thine enemies, while they pursue thee? or that there be three days' pestilence in thy land? now advise, and see what answer I shall return to him that sent me.