There is a penalty to pay for sin!

The sting of death is sin; and the strength of sin is the law. (1 Cor 15:56)

For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord. (Rom 6:23)

And he [Jesus] said unto them, Ye are from beneath; I am from above: ye are of this world; I am not of this world. I said therefore unto you, that ye shall die in your sins: for if ye believe not that I am he, ye shall die in your sins. (John 8:23-24)

But if the wicked will turn from all his sins that he hath committed, and keep all my statutes, and do that which is lawful and right, he shall surely live, he shall not die. (Ezek 18:21)

Then said they unto him, What shall we do, that we might work the works of God? Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent. (John 6:28-29)