David had no knowledge of cells and genes, being without even a microscope. But he correctly discerned that the development of his own body attested to advance planning.
‏ « رَأَتْنِي عَيْنَاكَ وَأَنَا جَنِينٌ ،‏ وَفِي سِفْرِكَ كُلُّ أَعْضَائِي كُتِبَتْ ،‏ يَوْمَ صُوِّرَتْ إِذْ لَمْ يَكُنْ وَاحِدٌ مِنْهَا بَعْدُ » .‏ ‏