14 Generations from Avrohom Avinu to Dovid Hamelech
Menashe was the 14th King of Yehuda
Zecharyahu was the 14th King of Yisroel
Achiya Hashiloni was the 14th Navi
Ruth is the 14th sefer of Tanach
Pesachim is the 14th masechta
Niputz (combing) is the 14th Melacha forbidden on Shabbos