Leviticus 15:4

Every bed on which he who issues lies is unclean. And everything on which he sits shall be unclean.

1 Corinthians 15:33

Do not be deceived; evil companionships corrupt good habits.

Ephesians 5:11

And have no fellowship with the unfruitful works of darkness, but rather reprove them.

Titus 1:15

To the pure all things are pure. But to those who are defiled and unbelieving nothing is pure, but even their mind and conscience is defiled.

Treasury of Scripture Knowledge

Summary

Every bed, whereon he lieth that hath the issue, is unclean: and every thing, whereon he sitteth, shall be unclean.

General references

Bible References

Be unclean

1 Corinthians 15:33
Do not be deceived; evil companionships corrupt good habits.
Ephesians 5:11
And have no fellowship with the unfruitful works of darkness, but rather reprove them.
Titus 1:15
To the pure all things are pure. But to those who are defiled and unbelieving nothing is pure, but even their mind and conscience is defiled.

General references

Leviticus 15:20
And everything that she lies on in her impurity shall be unclean. Everything also that she sits on shall be unclean.