God is a spirit and they that worship him must worship him in spirit and in truth (John 4:24). If we lack knowledge of God's word we can't worship him, because he is a spirit. We also can't walk in the Spirit if we lack knowledge of him. God is Spirit and the father of all spirits ( Hebrews 12:9 ) Weather we like it or not, we are either walking in the flesh or in the Spirit. There's no middle ground. We can't have one foot in the world and the other in God's Kingdom, it's all or nothing. Some may find this difficult to comprehend because they don't know what it means to walk in the spirit or why it is important. How do you walk in the spirit? It is the spirit that quickeneth; the flesh profiteth nothing: the words that I speak unto you, they are spirit, and they are life. John 6:63 God's word is Spirit when we believe in him and do what he says, we are walking in the Spirit. The flesh wants to gain control over us and the Spirit also wants control,
If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved. Romans 10:9