When God made man in His image He created us with a fundamental sense of right and wrong. God wrote His moral code in our hearts. This is evidenced by the fact that all peoples of the earth have a similar recognition of good and evil; right and wrong. If we accept the premise there is a written moral law in the fiber of our being it had to come from somewhere. There would have to be a supreme moral lawgiver. I posit that would be our Creator, God Almighty.
Genesis 2:7 – The Lord God formed the man from the dust of the ground and breathed into his nostrils the breath of life, and the man became a living being.
Zechariah 12:1 – The Lord, who stretches out the heavens, who lays the foundation of the earth, and who forms the spirit of man within him.
Ecclesiastes 3:11 – He has made everything beautiful in its time. He has also set eternity in the hearts of men; yet they cannot fathom what God has done from beginning to end.