This book shows you that they are true: the word, 'For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse: (Rm 1:20)', and the word, 'Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.(Jn 14:6)'; If you accept the advices of this book, you will have eternal life through the truth."Thus the cause of the universe must be the thing that exists by itself, that have never been nothing. This is because it doesn't exist by itself if something have ever been nothing. In other words, it requires dependently a cause of its own existence. Theism defines the cause is God, and atheism defines the cause is nature.""Christianity has God's justice but teaches love. Also, Christianity has God and the revelation of God, and the Bible records Jehovah, God of Christianity exists by himself(Ex 3:14). That's the qualification of the universe's cause."BOOK PREVIEW: Eternological Argument for the Existence of God"being understood by the things that are made" → (demonstration) Because to understand is getting to realize and know, that is, getting to think and know, the process of knowing eternity(part) by proving logically is needed. Now, since the eternal thing(whole) is the same as the thing exists without a beginning, let's prove it.Argument for the thing that exists without a beginning1. The things that have a beginning require dependently a cause of its own existence because it is impossible something exists by itself from inability as nothing doesn't have any ability and power.2. It doesn't require the cause as it exists by itself in the eternal state to have never been nothing.3. If it doesn't exist, anything can't exist.4. something exists.5. It exists."from the creation of the world are clearly seen" → (intuition) Here, to see means seeing with the mind's eye without the process of thinking. In other words, it is seeing the eternal thing with the intuition. Seeing the thing exists without a beginning is the same as seeing the eternal thing. Whoever sees the eternal thing with it gets to know it hasn't a beginning, the passages(changes), a end. Namely, the thing that exists without a beginning hasn't the passages and hasn't a end. However, the Big Bang theory claims the eternal state of compression ends that a point has. And also, the Cyclic Multiverse theory claims the eternity passes that exists without a beginning. But, they can't; thus the cause of the universe is God.Romans 1:19 23 Because that which may be known of God is manifest in them; for God hath shewed it unto them. For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse: Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened. Professing themselves to be wise, they became fools, And changed the glory of the uncorruptible God into an image made like to corruptible man, and to birds, and fourfooted beasts, and creeping things.