God reveals Himself through the Bible and nature. God is a spirit being with unlimited abilities, who has existed from eternity past and will exist for eternity future. What He has revealed to us is what we, as mere mortals, are capable of understanding. He does encourage us to “come and reason together.” (Isaiah 1:18) The mind is really the essence of the being, what is thought and what motivates actions.
Here are a few scriptures that help us understand God. He is a perfect balance of love, justice, mercy, power, and wisdom.
“God is love,” 1 John 4:8.
“Righteousness and justice are the foundation of Your throne; Mercy and truth go before Your face,” Psalms 89:14 (NKJV).
“God is light, and in Him is no darkness at all,” 1 John 1:5.
“Every good gift and every perfect gift is from above, coming down from the Father of lights with whom there is no variation or shadow due to change,” James 1:17 (ESV).
God proclaimed his name (his character) to Moses at Mount Sinai. “And the LORD… proclaimed, The LORD, The LORD God, merciful and gracious, longsuffering, and abundant in goodness and truth, Keeping mercy for thousands, forgiving iniquity and transgression and sin, and that will by no means clear the guilty…” Exodus 34:5-7. Note: God is forgiving and gracious, but He does not clear the guilty. He maintains a standard of righteousness, yet is merciful.
As human beings, created in the image of God, we have a mind that can plan and set goals. The big difference is that God’s plans will always succeed. “…My word be that goes out from my mouth; it shall not return to me empty, but it shall accomplish that which I purpose, and shall succeed,” Isaiah 55:11 (ESV).
We wonder when we see evil, is this all part of God’s plan? If He is so good, couldn’t He stop it? Yes, He could stop it but since He is loving and just and can’t deny Himself (2 Timothy 2:13) there must be some ultimate good that will be reached.
Briefly, it is summarized in Ephesians 1:9, 10 (Weymouth) “He made known to us the secret of His will. And this is in harmony with God's merciful purpose for the government of the world when the times are ripe for it–the purpose which He has cherished in His own mind of restoring the whole creation to find its one Head in Christ; yes, things in Heaven and things on earth.”
Any attempt to answer this question is really only a limited answer. “My thoughts are not your thoughts neither are your ways my ways…for as the heavens are higher than the earth so are my ways higher than your ways and thoughts than your thoughts,” Isaiah 55:8, 9.