'Secular' in the Bible

David answered the priest, “Be assured that women have been kept from us in these three days since I set out, and the bodies of the young men were consecrated (ceremonially clean), although it was an ordinary (unconsecrated) journey; so how much more will their vessels be holy today?”

Surely I am more brutish and stupid than any man,And I do not have the understanding of a man [for I do not know what I do not know].

“[Even] the priests did not say, ‘Where is the Lord?’And those who deal with the law [given to Moses] did not know Me.The rulers and shepherds also transgressed against Me,And the prophets prophesied by [the authority and in the name of] BaalAnd walked after [idolatrous] things that did not benefit [them].

Her priests have done violence to My law and have profaned My holy things. They have made no distinction between the holy (sacred) and the profane (secular), they have not taught [people] the difference between the unclean and the clean; and they hide their eyes from My Sabbaths, and I am profaned among them.

“The remaining [strip of] 5,000 cubits in width and 25,000 in length shall be for the city’s common (secular) use, for a place in which to live and for open country. The city shall be in the midst of it.