Prayer for a hedge of protection

My family is traveling by passenger van to a family reunion in the morning. Dear Lord, please cover every hair on their head and place a hedge of protection about them as they travel. You know that eveyone I love is in that van. Please cover them from any harm and cover them with the blood of your Son Jesus Christ, protector of the Universe. I pray to you because I know no other worthy of my prayer. You alone are capable of protecting
My greatest treasures on earth. Please God, protect them.