Before I answer your question about the existence of God. Let's discuss what the Bible defines as Faith. Many people believe that faith is blind trust or belief.
The Bible, in contrast, describes faith as being neither blind nor illogical. God’s Word says: “Faith is the assured expectation of things hoped for, the evident demonstration of realities though not beheld.”—Hebrews 11:1.
What that means...
At the time of the writing of the Bible book of Hebrews, the Greek term translated “assured expectation” was commonly used. It often appeared in business documents and carried the idea of a guarantee of future possession of something. Therefore, one reference work suggests that Hebrews 11:1 could be translated: “Faith is the title-deed of things hoped for.”
If you have ever bought an item from a reputable company and then waited for it to be delivered, you have exercised that type of faith. The sales receipt in your hand gave you reason for faith in the company from which you bought the item. In a sense, that receipt was your title deed, your guarantee that you would receive what you purchased. If you had lost the receipt or had thrown it away, you would have lost the proof of your claim of ownership. Similarly, those who have faith that God will fulfill his promises are guaranteed to receive what they hope for. On the other hand, those who do not have faith, or who lose it, are not entitled to receive the things God promises.—James 1:5-8.
The second expression at Hebrews 11:1, translated “evident demonstration,” carries the idea of producing evidence that contradicts that which only appears to be factual. For instance, the sun appears to revolve around the earth—rising in the east, moving through the sky, and setting in the west. However, evidence from astronomy and mathematics reveals that the earth is not the center of the solar system. Once you become familiar with that evidence and accept it as true, you have faith that the earth revolves around the sun—despite what your eyes tell you. Your faith is not blind. On the contrary, it gives you the ability to see things as they really are, not merely as they seem to be.
This is the type of faith that the Bible encourages—strong faith built on solid evidence, even if it requires that we adjust our beliefs. Such faith is vital. The apostle Paul wrote: “Without faith no one can please God. Anyone who comes to God must believe that he is real and that he rewards those who truly want to find him.”—Hebrews 11:6, New Century Version.
As to the second part of your question belief in God. I was a little confused by the latter part of your query I wasn't sure if you believed in God or not, but notice what the Bible has to say on the subject.
Does God Exist? Is there a God?
The Bible’s answer
Yes, the Bible provides compelling evidence that God exists. It encourages us to build faith in God, not by blindly believing religious assertions, but by using our “power of reason” and “mental perception.” (Romans 12:1; 1 John 5:20, footnote) Consider the following lines of reasoning based on the Bible:
The existence of an orderly universe containing life points to a Creator. The Bible says: “Of course, every house is constructed by someone, but the one who constructed all things is God.” (Hebrews 3:4) Although this logic is simple, many well-educated people find it to be powerful. As humans, we have an innate desire to understand the meaning and purpose of life, a type of hunger that can remain after our physical needs have been met. This is part of what the Bible calls our “spiritual need,” which includes the desire to know and worship God. (Matthew 5:3; Revelation 4:11) This spiritual need not only gives evidence that God exists but also indicates that he is a loving Creator who wants us to satisfy that need.—Matthew 4:4.
Detailed prophecies in the Bible were written centuries ahead of time and came true exactly as predicted. The accuracy and detail of those predictions strongly suggest that they came from a superhuman source.—2 Peter 1:21.
Bible writers had scientific knowledge that was beyond the understanding of their contemporaries. For example, in ancient times many peoples believed that the earth was supported by an animal, such as an elephant, a boar, or an ox. In contrast, the Bible says that God is “suspending the earth upon nothing.” (Job 26:7) Similarly, the Bible correctly describes the shape of the earth as a “sphere,” or “globe.” (Isaiah 40:22, footnote; Douay Version) Many people feel that the most reasonable explanation for such advanced understanding is that Bible writers received their information from God.
Would you like to learn more about our Creator, Jehovah God? Why not take time to investigate for yourself?
The Bible’s message about God is simple yet thought-provoking—and to some it is surprising.
Our Creator is not an impersonal force. God has a personality and a name, Jehovah. *—Isaiah 42:8.
Jehovah God’s existence has no beginning and will have no end.—Psalm 93:2; Isaiah 40:28.
God is not a stern judge, as he is portrayed by some religions. Rather, his foremost quality is love.—1 John 4:8.
God is interested in humans and has communicated his purpose for our lives.—Ecclesiastes 12:13; Micah 6:8.
Does the Bible reveal everything about God? Of course not. The Bible itself says that we know “just the fringes of his ways.”—Job 26:14. For more info Visit jw.org >Publications >Book and Brochures > What Can The Bible Teach Us Chapter 1 Who is God?