What does it mean that God is eternal? This expresses the truth that there never was a time when God was not, and there never will be a time when God is not.
In the book of 1 John, the apostle John points out much about the character of God to the Christians to whom he is writing. He has taught them that God is Light, He is Spirit, He is eternal. He is a Father. But perhaps the most clear picture he gives of God is that God is love. The article discusses the meaning of 1 John 4:7-21.