“Image of God” is one of the names of Jesus (Yeshua‘) used by Paul. The Greek word eikōn has a broad range of applications. It can refer to idols that represent false gods but have no spiritual substance behind them. On the other hand, in Hebrews 10:1 it signifies something that is real and not a shadow (skia). In Greek society, an eikōn was an identification document that acted as a legal description of the person. In that sense, Jesus is the Image of God.
Image of God in Greek:
Eikōn tou theou
Strong’s Concordance numbers: 1504, 2316
Bible reference: 2 Cor. 4:4
The god of this world has blinded the minds of the unbelieving so that they might not see the light of the gospel of the glory of Christ, who is the image of God. (2 Corinthians 4:4)
Paul used a similar name for Jesus in his letter to the Colossians. He called Jesus the Image of the invisible God.