[beren]

Well now is my turn after Frank brought good question; I want to broad this last verse from previous reply; namely ,
The tongue that brings healing is a tree of life,
but a deceitful tongue crushes the spirit.

What ,according to this, is a tree of life?
Personally I think it is some tree which has its own fruits of unknown to us substances which nourish perfectly as we can never imagine or our science to grasp about.

Other thing that comes into my mind is first line in verse-tongue that brings healing-

Think about it, first the thought is formed along with emotion in our mind and heart. Then that vibration transforms into words that we say.

In our power lies healing or destruction.
Let us choose wisely.