The Moral Argument for the exist of God: God alone makes sense of objective moral values, and since objective moral values exist, then God exists.
All people have some sense of moral “right or wrong” Read Romans 2: 13-15 (NIV);
13 For it is not those who hear the law who are righteous in God’s sight, but it is those who obey the law who will be declared righteous. 14 (Indeed, when Gentiles, who do not have the law, do by nature things required by the law, they are a law for themselves, even though they do not have the law. 15 They show that the requirements of the law are written on their hearts, their consciences also bearing witness, and their thoughts sometimes accusing them and at other times even defending them.)
To support this scripture, unless someone does not listen to their conscience then torturing a baby for personal pleasure would be alright to do. In the skeptic’s mind though they usually rationalize this out to be a result of evolution as a form of naturalism. If they truly believe this, then moral responsibility doesn’t exist! The atheists’ claim that morals are a direct result of culture, personal choice, and evolution then what’s to say that torturing a baby is wrong? By that standard the atheist/naturalist cannot judge what Hitler did was wrong either although he knows it IS WRONG!. Moral Relativism comes to mind; “a philosophy that asserts there is no global, absolute moral law that applies to all people, for all time, and in all places”. Gobbledegook! Nietzsche wrote, “You have your way, I have my way. As for the right way, it does not exist.” So then anarchy is also not out of the picture to the naturalist!
Of course, atheists can be moral. Even the atheist was created in the image of God, Imago Dei (Hebrew: צֶלֶם אֱלֹהִים; tzelem Elohim) and has the God-given capacity of discerning right from wrong; they just don’t want to accept God or the accountability that God wants from us. Read 2 Peter 3:3-7:
Knowing this first, that there shall come in the last day’s scoffers, walking after their own lusts, and saying, “Where is the promise of his coming? for since the fathers fell asleep, all things continue as they were from the beginning of the creation.” For this they willingly are ignorant of, that by the word of God the heavens were of old, and the earth standing out of the water and in the water: whereby the world that then was, being overflowed with water, perished: but the heavens and the earth, which are now, by the same word are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men.
This scripture is a clear warning to scoffers and mockers! Seek the Lord Jesus Christ and finally become accountable. And yes the Moral Argument proves there is a God.