Salt to an open wound

Job 8:1-22
Surely God does not reject a blameless man or strengthen the hands of evildoers. He will yet fill your mouth with laughter and your lips with shouts of joy.
We were born only yesterday and know nothing, and our days on earth are but a shadow.
Eliphaz had begun gently. Bildad takes a firmer line as Job's words grow wilder. God is just. He rewards the good and punishes the wicked. Bildad's words are salt to an open wound.
Why?
To be a counselor should face the situation of the weaker, sicker or needed person. Don't put salt to an open wound.
Surely God will reward those who obey his words, but some disaster or trial may come upon them. We don't know why. But God's knows and God has his way to his lived one.
How?
Trust in the Lord and don't put salt to an open wound.