God is spirit, and his worshipers must worship in the Spirit and in truth.
Romans 8 : 13-16
For if you live according to the flesh, you will die; but if by the Spirit you put to death the misdeeds of the body, you will live. For those who are led by the Spirit of God are the children of God. The Spirit you received does not make you slaves, so that you live in fear again; rather, the Spirit you received brought about your adoption to sonship. And by him we cry, “Abba Father.” The Spirit himself testifies with our spirit that we are God’s children.
2 Corinthians 5:17
Therefore if any man be in Christ, he is a new creation: old things are passed away; behold, all things are become new.
Jesus looked at them and said, “With man this is impossible, but with God all things are possible.”