Ignorance is Bliss

"When kids are involved, having a workable relationship is paramount. Being respectful is the only way to build healthy relationships," Haworth says.
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Keep the negative thoughts (and words) to a minimum. You're all human, and you all have feelings that you're completely entitled to. But remember, your attitude will affect your kids, as well as your behavior — perhaps without you even realizing it.

The concept of “knowing” implies a very intimate unity. This intimate bond can be physical, emotional, intellectual or spiritual.
For example, Understanding is the same term used in Genesis 4:1 to describe Adam having sexual relations with Eve. It is also used to describe “spiritual knowledge,” in terms of connection to God, in Daniel 12:4.