Woe to them that devise iniquity and work evil upon their beds! when the morning is light, they practise it, because it is in the power of their hand.
Micah 2:1
Albert Barnes (1798–1870) writes,
They plot and forecast and fulfill it even in thought, before it comes to act.
… [the bed] ought to be the place of holy thought, and of communing with their own hearts and with God …
Stillness must be filled with thought, good or bad; if not with good, then with bad.
The chamber, if not the sanctuary of holy thoughts, is filled with unholy purposes and imaginations.
Man’s last and first thoughts, if not of good, are especially of vanity and evil. The Psalmist says, "Lord, have I not remembered Thee in my bed, and thought upon Thee when I was waking?" Psalms 63:6.
These men thought of sin on their bed, and did it on waking.
Andrew Groves 