Sermon Illustrations on god's knowledge (omniscience)

My Sunday school class of youngsters had some problems repeating the Lord’s Prayer. One child prayed, “Our Father, who art in heaven, how’d you know my name.”

Many of us, when we know we are going to the dentist in a few days, suddenly start brushing and flossing our neglected teeth and gums, hoping that we will somehow trick the dentist into thinking that ...