2d. The human writers could refer to non-Biblical sources, such as Jewish history books (Book of Jasher in Joshua 10:13; 2 Samuel 1:18, etc.), and even Greek poets where they spoke what is true (Acts 17:23,28; Titus 1:12). See Philosophy of Religion by Norman L. Geisler p.211-291 for more info on God and human language.
2d. Waandishi wanadamu wangeweza kunukuu maandiko mengine yasiyokuwa ya Kibiblia, kama vitabu vya historia ya Kiyahudi (Kitabu cha Yashari kwenye Yos 10:13; 2 Sam 1:18, n.k.), na hata mashairi ya Kigiriki yaliposema vitu vilivyokuwa kweli (Mdo 17:23,28; Tit 1:12).