Written on their heart

God said, “Let us make man in our image, after our likeness.” … So God created man in his own image, in the image of God he created him; male and female he created them. (Genesis 1:26–27)

 This tells us that human beings are patterned after God. God is personal, and, like God, we are rational, self-aware, intelligent, and have a will, emotions, and knowledge. We can think, reason, and learn.
 We also have a moral likeness to God. Scripture teaches that every human being has God’s law “written on their heart.” Everyone intrinsically knows the difference between right and wrong, because they have a conscience which accuses them when they do wrong. (Romans 2:14–16)
 It’s not given to us to decide whether or not we ought to live according to God’s moral standard, as God already set that parameter when He created us. We may decide that we don’t want to live by His standards, but that doesn’t take away from the fact that we need to, and that there are consequences to acting contrary to God’s moral law.
 When individuals are held accountable before God at the end of their lives, no one will be able to say that they didn’t know it was wrong to murder, to lie, to steal, etc., for God has implanted basic morality in every human being. —Peter Amsterdam [1]

 If we are to go forward, we must go back and rediscover those precious values - that all reality hinges on moral foundations and that all reality has spiritual control. —Martin Luther King Jr.

[1] ] Anchor Personality and Rationality