"Let not your heart be troubled: ye believe in God, believe also in me. In my Father's house are many mansions: if it were not so, I would have told you. I go to prepare a place for you. And if I go and prepare a place for you, I will come again, and receive you unto myself; that where I am, there ye may be also. And whither I go ye know, and the way ye know. Thomas saith unto him, Lord, we know not whither thou goest; and how can we know the way? Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me" (John 14:1-6)
"All have sinned, and come short of the glory of God" (Romans 3:23)
"... what must I do to be saved? And they said, Believe on the Lord Jesus Christ, and thou shalt be saved" (Acts 16:30-31)