God created human beings with a unique capacity: free will.

Suppose there was a king who loved a humble maiden. The king was like no other king. Every statesman trembled before his power … and yet this mighty king was melted by love for a humble maiden. How could he declare his love for her? In an odd sort of way, his kingliness tied his hands. If he brought her to the palace and crowned her head with jewels … she would surely not resist—no one dared resist him. But would she love him? She would say she loved him of course, but would she truly?6

You see the problem. Less poetically put: How do you break up with an all-knowing boyfriend? (“It’s just not working out between us, but I guess you already knew that.”) But to make freely exchanged love possible, God created human beings with a unique capacity: free will.