This is the message of the Bible. It is a message about God's love. It is through this love that God has provided for us, the sinner, a way...the only way...to heaven.
Talking about our Messiah, Isaiah fore-told about it this way.
"But He was wounded for our transgressions, He was crushed for our iniquities; the punishment that brought us peace was upon Him, and by His wounds we are healed" (Isaiah53).
It is because of God's love and through this very love that we can enter into a relationship with God. If you do not know about this love then please pray for God to reveal to you the truth about this John 3:16 passage. He is willing and more than able to meet you where you are at in life right now.
The Gospel of John, Chapter 3 verse 16.