Ezekiel 44:4-9 - Rules For Admission To The Temple
4 Then brought he me to the door, upon the North side of the house. And as I looked about me, behold, the glory of the LORD filled the house: and I fell down upon my face. 5 So the LORD spake unto me, "O thou son of man, fasten this to thine heart, behold, and take diligent heed to all that I will say unto thee, concerning all the ordinances of the LORD and all his laws: ponder well with thine heart the coming in of the house and the going forth of the Sanctuary:
6 And tell that obstinate household of Israel, 'Thus sayeth the LORD God: O house of Israel: yea have now done enough with all your abominations, 7 seeing that ye have brought into my Sanctuary strangers having uncircumcised hearts, and flesh, wherethrough my Sanctuary is defiled, when ye offer me bread, fat, and blood. Thus with all your abominations ye have broken my covenant, 8 and not kept the holy ordinances of my Sanctuary, but set keepers of my Sanctuary, even after your own mind.
9 Therefore thus sayeth the LORD God: Of all the strangers that dwell among the children of Israel, no stranger, whose heart and flesh is not circumcised, shall come within my Sanctuary: