I disagree with your second paragraph, especially the 'sadly' bit. Abraham did not have any confidence about God. He was just going about his daily life among the moon worshippers of UR. The communication was all on God,s side. The same happened with Noah and Moses.. I could give you many stories of it happening to people these days. The NT says (as you know) :"In Him (God) we live and move and have our being." Miracles (I think) should be happening to some degree regularly for Christians. The very fact the devil can't destroy us is a miracle for a stert. Miracles are just God doing what He does. blessings