Preston Gillham Speaks to Men About Things Only Men Know. You've heard it since you were Be a man! But what does that mean? Men are engaged in a great battle between good and evil, so in a very real sense being a man means becoming a warrior, fighting for the great GOD'S WORTHINESS. When ordinary men learn to depend upon Christ, extraordinary things occur. With practical ideas and biblical simplicity, Preston Gillham show how to follow the Lord's example, find strength in God, and establish security in your relationships by exploring the things only men of God know.