Greek, is at any rate significant of the fact that the One True GOD was still worshipped. The same fact is clear from the name Beitu'llah¹ or "House of GOD" given from very early times to the Ka'aba at Mecca, a shrine to which Diodorus² informs us all the Arab tribes, even in his own time, paid great respect. And in the celebrated collection of poems called "Mu'allaqat," which have come down to us from pre-Islamic times, we find this name of GOD with the article repeatedly occurring.³ Moreover,

such names as 'Abdu'llah,¹ "Servant of GOD," borne by Muhammad's father, who died before his son's birth, bear testimony to the same fact. Ibn Ishaq, the earliest biographer of Muhammad whose work has come down to us, in speaking of the religion of the ancient Arabs, says that the tribes of Kinanah and Quraish,² when performing the ceremony termed Ihlal, used to address the Deity in these words, "Labbeika Allahumma"—"We are present in Thy service, O GOD, we are