Heb 1:3 says The Son is the dazzling radiance of God’s splendor, the exact expression of God’s true nature—his mirror image! He holds the universe together and expands it by the mighty power of his spoken word. He accomplished for us the complete cleansing of sins, and then took his seat on the highest throne at the right hand of the majestic One.

This means Jesus is the Sprout of God, the image of his glory and He is God’s mirror image and exact expression” (the reflection of God). So, to know God's true nature, you must look at the person and character of Jesus. 

Listen to this podcast to see how that will build your faith.