What does it mean that God is eternal? For something to be eternal would require that it never had a beginning and that it will never have an end. In the entire universe, there is nothing that’s eternal except for God. God did not begin and he will not end. One place we can go in the Bible to learn this is Psalm 90, verse 2. The English Standard Version says this: “Before the mountains were brought forth, or ever you had formed the earth and the world, from everlasting to everlasting you are God.” That Psalm is attributed to Moses and when he said from everlasting to everlasting, he was looking in both directions - eternity past and eternity future.  God is always present, no matter how far back or how far forward you go.