Have you ever doubted God’s loving presence in your life? In your heart of hearts, have you ever doubted the very existence of God?When God told Abraham he would be a father in his old age, Abraham doubted God’s promise. Even after talking directly with God, Abraham still had his doubts ( Genesi s 17:17). When God, posing as one of three travelers, told Abraham that his and Sarah’s desire for a child would be granted, regardless of their age, Sarah laughed because of her doubts and disbelief. They both came to understand that this traveler was actually Jehovah God,