Now there came the turn of ADAM to explain the names and the nature of things to the angels; for, God ordered him saying: ``O, ADAM! Inform them of their names; and when he did that well and efficiently, God said to the angels: ``Did I not tell you that I know the unseen things of the skies and earth? And that I know all that you hide, and all that you divulge?'' So they made sure that MAN is the worthiest for being the caliph, and they bowed down their heads to admit that.