The Holy Bible tells that God is Spirit. The meaning of this is that He is dominating everything by His power and His presence, and He possesses everything, but it does not mean that He has no specific shape or structure. For example, when we say, God is love, we ought to understand that God the Father possesses the character ‘love’ enormously which can not be measured. But when we say this, it does not mean that Love is God but it means Love is divine. Similarly, when we say, God is Spirit, we should understand that He is omnipotent, omnipresent and omniscient.
The Holy Bible tells indirectly that God the Father has a specific shape and structure (Genesis 1:27). No man has seen Him but except our Lord and Savior Jesus Christ (John 6:46). His name is not mentioned in the Bible. He is Almighty God and He is The Father of our Lord, our God and our Savior Jesus Christ Only (John 3:16). He is the Holiest and staying in the light where nobody could reach. He is surrounded by innumerable number of Angels, Saints and all mighty powers saying, Holy, holy, holy is the Lord God Almighty (Revelation 4:8). Nobody, whether he is an earthly being or heavenly being, however mighty or holy he or she is, can reach Him or can be in His presence (Revelation 5:3&4). It is because of the His great holiness and Almighty power. Though He is of great holiness and of Almighty power, He is gracious and compassionate God, slow to anger and abounding in love. He causes His sun to rise on the evil and the good and sends rain on the righteous and the unrighteous and He is perfect (Matthew 5:45). Because of His great love for us, He made us alive with Christ even when we were dead in transgressions and it is by His pure grace we have been saved, through faith in Christ Jesus and this is not from our good works and it is the gift of our God the Father (Ephesians 2:8). For this reason, we should always praise and worship Him through our Lord and Savior Jesus Christ. To deliver us from the sin and to show His great love through our Lord Jesus, He made His only begotten Son our Lord Jesus Who had no sin to become sin for us, so that in Christ we might become the righteousness of Him (2 Corns.5:21). Even today He hears all the requests made by our Lord Jesus Christ in our defense (1 John 2:1). Not everyone who says to our Lord Jesus, Lord, Lord, will enter the kingdom of heaven, but only he who does the will of God the Father Who is in heaven (Matthew 7:21). It is the will of God the Father that we should receive the Spirit of Christ in our hearts and do our works according to His commandments (John 14:21), then God the Father will send His own Spirit on us so that we should be filled with the fullness of Holy Spirit (John 14:26). When we receive this kind of Spirit we could serve our Lord Jesus Christ in a correct and sincere manner (Acts 2:4, 41-43).