In the history of philosophy, there are several arguments for the existence of God:
COSMOLOGICAL ARGUMENT
Logically speaking the cosmological argument for the existence of God is inductive and a posteriori: the evidence is examined, and based on it a conclusion is drawn that God exists. The term cosmological comes from the Greek word cosmos, meaning “world.” This argument is based on the fact that a cosmos, or world, exists. Because something cannot come from nothing, there must be an original cause that is the reason for the world’s existence...
TELEOLOGICAL ARGUMENT
As in the previous case, the teleological argument is inductive and a posteriori. Teleological comes from the Greek word telos, meaning “end.” The teleological argument may be defined thus: “Order and useful arrangement in a system imply intelligence and purpose in the organizing cause...
ANTHROPOLOGICAL ARGUMENT
The anthropological argument, which is also inductive and a posteriori, is based on the Greek word anthropos, meaning “man.” Contrary to the secular humanist who sees man simply as a biological being, the biblicist sees man as created in the image of God (Gen. 1:26–28). The image of God in man is spiritual, not physical (cf. Eph. 4:24; Col. 3:10). Man is not simply a physical being, but also a moral being with a conscience, intellect, emotion, and will...
MORAL ARGUMENT
The moral argument is related to the anthropological argument (some combine the two) and can be seen as a further consideration of that argument. The moral argument acknowledges that man has an awareness of right and wrong, a sense of morality. Where did this sense of moral justice come from? If man is only a biological creature why does he have a sense of moral obligation? Recognition of moral standards and concepts cannot be attributed to any evolutionary process...
ONTOLOGICAL ARGUMENT
The ontological argument, distinct from the preceding arguments, is deductive and a priori; it begins with an assumption and then attempts to prove that assumption. It is less significant than the preceding arguments. p 185 The term ontological comes from the Greek present participle ontos (from the verb eimi) and means “being” or “existence.” The ontological argument is philosophical rather than inductive. The argument reasons: “If man could conceive of a Perfect God who does not exist, then he could conceive of someone greater than God himself which is impossible. Therefore God exists.” The argument rests on the fact that all men have an awareness of God. Because the concept of God is universal, God must have placed the idea within man...
Enns, P. P. (1989). The Moody handbook of theology (pp. 183–185). Chicago, IL: Moody Press.
The Bible does not use any of those things, but it assumed from the get-go that there is a God, and that all humanity is guilty if they refuse to accept the obvious: God is, and that he cares for your soul:
Romans 1:18 For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who hold the truth in unrighteousness;
19 Because that which may be known of God is manifest in them; for God hath shewed it unto them.
[the reason for that is this:]
20 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:
[here is what their unbelief did:]
21 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.
22 Professing themselves to be wise, they became fools,
23 And changed the glory of the incorruptible God into an image made like to corruptible man, and to birds, and four-footed beasts, and creeping things
As a result, all men are held accountable to God. Notice that is not He who has to prove Himself to us, rather it is us, who are held accountable to the fact that He exists, and that He reveals himself.
The reader of the Bible is confronted with that in Genesis 1:1. Essentially the Hebrew begins "before the beginning began,God {Elohim} created" That verse is significant for many reasons.
First it speaks of creation ex-nihilio, or creating from nothing
Second it uses the plural form of one of the names of God
Third the verb translated created [bra in Hebrew] is only and always used to mean divine and special creation.
So you see, the Bible is not "anthro-centric "in that it is created for God to show humanity that He exists in many ways. Instead the Bible is theocentric because it assumes that God exists,and that He holds humanity uniquely responsible for his obdurate refusal to recognize that God exists, and that He is a rewarder to those who dillgently seek Him.
Those are somethings you will NOT see in any other "religious holy book" and that is what makes both Judaism and Christianity unique.