What does God know, and why does He know it? The Bible says that God’s understanding is infinite. "Great is our Lord, and of great power: his understanding is infinite." (Psa. 147:5)Strong's translates infinite as unsearchable. God’s knowledge has no boundaries. The Psalmist is saying that God’s knowledge is without limits; it reaches to all men, and to all the thoughts of their hearts, the words of their mouths, and the actions of their lives; it reaches to all things past, that have been, to everything present, and to whatsoever is to come; it includes not only the knowledge of all things that are, or certainly will be, but of all things possible."Hast thou not known? hast thou not heard, that the everlasting God, the LORD, the Creator of the ends of the earth, fainteth not, neither is weary? there is no searching of his understanding." (Isa. 40:28)Here (as in Psa. 147:5) the same Hebrew word “ayin” is used, meaning unsearchable, unfathomable. We cannot reach the depths of God’s knowledge.God’s knowledge, unlike ours, does not come in a series of thoughts, one following the other. The events in time do not parade across God’s mind to be viewed event by event. He sees all of history at one glance. God knows everything perfectly and He knows it all at once. He does not grow more intelligent with time. God does not gain or lose knowledge. He cannot grow wiser. He has perfect knowledge. He has had perfect knowledge of everything knowable throughout eternity.The Latin word “omniscience” is often used to define God’s knowledge. The word “omni” is all, and the word “science” is knowledge. Put together it means all-knowledge. God knows every microscopic detail of everything knowable - from beginning to end. Our God “declares the end from the beginning” (Is 46:10). He knows our future acts and decisions, including all our sins – yet He still calls us by name to Himself.Amen.