When God called Moses to lead the Israelites out of Egyptian bondage, Moses was afraid. “And Moses said unto God, Behold, when I come unto the children of Israel, and shall say unto them, The God of your fathers hath sent me unto you; and they shall say to me, What is his name? what shall I say unto them? And God said unto Moses, I AM THAT I AM: and he said, Thus shalt thou say unto the children of Israel, I AM hath sent me unto you” (Exodus 3:13-14). God called Himself “I AM,” indicating His eternal existence. This name implies that God always has been, and always will be. Moses recognized the eternal nature of God in Psalm 90:2: “Before the mountains were brought forth, or ever thou hadst formed the earth and the world, even from everlasting to everlasting, thou art God.”
Perhaps the greatest difficulty hindering finite man from understanding the eternality of God is that man is a time-bound creature. We are born, we live, and we die. We live exclusively in the duration of time. But God is outside time, and not bound by time at all. Job’s “friend” Elihu said, “Behold, God is great, and we know him not, neither can the number of his years be searched out” (Job 36:26). The scriptures declare God’s eternality. “I am Alpha and Omega, the beginning and the ending, saith the Lord, which is, and which was, and which is to come, the Almighty” (Revelation 1:8). Peter understood that God is not bound by time. “Beloved, be not ignorant of this one thing, that one day is with the Lord as a thousand years, and a thousand years as one day” (2 Peter 3:8). Peter was not giving a mathematical formula that one day equals a thousand years, but he was indicating that God stands above time, and sees it all as present.
“The heavens declare the glory of God; and the firmament showeth his handiwork” (Psalm 19:1). The fact that there is a creation demands that there be a Creator! The Bible begins with the words, “In the beginning God created the heaven and the earth” (Genesis 1:1). He is the Creator. Was He created? If God was created, then there would have to be a greater God Who created God. What greater God would then create that God? Obviously there must be a great “uncaused Cause.” In other words, God is eternal and has always existed, because there is no greater God that could have created Him. The universe is not eternal. Even non-theological theories such as the “big bang” suggest that the universe had a beginning. The scientific evidence suggests that the universe is wearing out, as the third law of thermodynamics demands. Since the universe clearly had a beginning, it had to have someone or something greater than it to begin it. The Bible tells us that the self-existent God created the universe, and revealed Himself to man in Jesus Christ. Christ identified Himself as eternal when he said, “Verily, verily, I say unto you, Before Abraham was, I am” (John 8:58). God “hath in these last days spoken unto us by his Son, whom he hath appointed heir of all things, by whom also he made the worlds” (Hebrews 1:20).