God knows every single thing about you. Every word spoken, every sin committed, every breath taken. He knows what you're thinking and the next step you are about to take. God is the ultimate loving and most faithful companion because he knows more about you than anyone else and will never leave you. He is always good and His love is all encompassing and all enduring. God knows you fully and he loves you fully. It is unconditional- there is nothing you can do to earn His love or lose it. You are so fully known and fully loved.
"But whoever loves God is known by God."- 1 Corinthians 8:3
"Give thanks to the Lord, for he is good; his love endures forever." 1 Chronicles 16:34