Daughter's strength through difficult divorce and custody battle

My daughter is going thru a nasty divorce and custody process. I ask prayers for her strength and her health! I ask prayers for my grandchild caught up in this. I ask that my daughter’s soon to be ex husband and his family show some compassion. She is and has been a wonderful wife and mother and she is being lied on. He has been awful to her and abusive. She is struggling. Please God. Please help. It’s so hard to watch such injustice in the family law system. Please let her get her custody wishes.