Leviticus 10:10

10You are to adistinguish between the holy and the common, and between the unclean and the clean,

Leviticus 11:47

47 bto make a distinction between the unclean and the clean and between the living creature that may be eaten and the living creature that may not be eaten.

Ezra 9:11-12

11which you commanded by your servants the prophets, saying, ‘The land that you are entering, to take possession of it, is a land impure with the impurity of the peoples of the lands, with their abominations that have filled it from end to end with ctheir uncleanness. 12 dTherefore do not give your daughters to their sons, neither take their daughters for your sons, and never seek their peace or prosperity, that you may be strong and eat the good of the land eand leave it for an inheritance to your children forever.’

Hosea 9:3

3They shall not remain in fthe land of the Lord,
but gEphraim shall return to Egypt,
and hthey shall eat unclean food in Assyria.

Romans 14:14

14I know and am persuaded in the Lord Jesus ithat nothing is unclean in itself, jbut it is unclean for anyone who thinks it unclean.

1 Corinthians 7:14

14For the unbelieving husband is made holy because of his wife, and the unbelieving wife is made holy because of her husband. kOtherwise your children would be unclean, but as it is, they are holy.
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