Does God have a physical appearance or is he just a voice?

Answer 1

Yes, He has a definite physical appearance. The Gospel of John is a great starting-point for discovering the physical nature of God in the person known as Jesus Christ. Jesus identifies Himself as God when He says He is the Son of God (see John 5:17-23; 8:57, 58; and 10:32-38, for example). John later talks about Jesus as the One "which we have seen with our eyes...and our hands have handled" (in 1 John 1:1). Why?
After Jesus suffered, died, and was resurrected--just as He had foretold--He appeared to his followers. To ensure that none of them might fall into the fallacy of believing that He was merely a spirit masquerading in a body, He told a doubter, Thomas, to "Reach your finger here, and look at My hands; and reach your hand here, and put it into My side" (John 20:27). What was He referring to? He was inviting Thomas to handle the places where His hands had been nailed to the cross, and where His side had been wounded with a spear.
Jesus is God. He was, and is, very physical. This is wonderful news for anybody who trusts Him, because it promises a resurrection that is not a mere "reincarnation" or a gathering into a "Force." In 1 Corinthians 15, Paul the Apostle explains how closely linked our resurrection is to Jesus' resurrection. In fact, Paul says, if we humans don't get resurrected, then Jesus wasn't either, as though He was resurrected because of His humanity (verse 12). Then Paul goes on to describe what a wonderful body that new one will be.