Although the Hejaz was never a stronghold of Arab Christianity , there are reports of Christians around Mecca and Yathrib before the advent of Islam .
The Ghassanid tribe were important Christian foederati of Rome , while the Lakhmids were an Arab Christian tribe that fought for the Persians .
Although the Hejaz was never a stronghold of Arab Christian Christianity , there are reports of Christians around Mecca and Yathrib before the advent of Islam .
The Ghassanid tribe were important Christian foederati of Rome , while the Lakhmids were an Arab Christian tribe that fought for the Persians .