James 1:17 (NKJV)
There are several ways that you can get to know someone. One way is to spend time with them and see how they act. You can get to know a person by talking to them and hearing them tell you what they think about different things. You can also learn what someone is like by reading things they have written; what a person says on social media, if they have a blog, or if they have written books, anything someone writes will tell you about them and what they are like. The key is to find out what the person is really like and not just what others might say about them.
Many people are not sure what God is really like. Some people base their understanding of God on past experience, by watching the lives of Christians, and even by church teaching and tradition. But those things are not necessarily the best methods of getting to know God; our past experiences may not be biblical, the lives of others may not accurately reflect who God is, and what a church teaches may just be man's ideas or traditions. To really know and understand God we need to take a look at what the Bible says about who God is, what He is like, and what He does.
God has revealed Himself to us through His Word. James 1:17 says that God gives good and perfect gifts, that shows us that if something bad comes into our life then we can be sure that God did not send it. In Psalm 35:27 it tells us that God takes pleasure in the prosperity of His servant, so we know that God wants us to prosper and succeed in life. 1 Peter 3:12 says that God's eyes are on the righteous and His ears are open to their prayers, which shows us that God is watching over us and He is ready to hear and answer when we pray. Don't take someone's word for what God is like, get to know God through His Word.