For since the creation of the world God’s invisible qualities–his eternal power and divine nature–have been clearly seen, being understood from what has been made, so that men are without excuse. For although they knew God, they neither glorified him as God nor gave thanks to him, but their thinking became futile and their foolish hearts were darkened, for all have sinned and fall short of the glory of God. But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. For the wages of sin is death, but the gift of God is eternal life in Christ Jesus our Lord.
If you confess with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved. For it is with your heart that you believe and are justified, and it is with your mouth that you confess and are saved. Everyone who calls on the name of the Lord will be saved.
(Romans 1:20-21; 3:23; 5:8; 6:23; 10: 9-10, 13; 11:36-NIV condensed for easy reading)