But you need to know that you have a decision to make, a decision that will determine where you will spend eternity. This is NOT at all what John 3:16-21 is saying. A simple reading of the text says that "...and people loved the darkness rather than the light because their works were evil."
God loves the world. God sent His Son. Whoever believe in Him has life. But we love darkness rather than light. Our works are evil. Whoever does what is true (come to Christ) it is because it has been carried out by God.
God is love, love, love. Man is evil, evil, evil. God must change our hearts to want to seek Him. We are a stubborn and rebellious people.
Deu 9:4-6 "Do not say in your heart, after the LORD your God has thrust them out before you, 'It is because of my righteousness that the LORD has brought me in to possess this land,' whereas it is because of the wickedness of these nations that the LORD is driving them out before you. Not because of your righteousness or the uprightness of your heart are you going in to possess their land, but because of the wickedness of these nations the LORD your God is driving them out from before you, and that he may confirm the word that the LORD swore to your fathers, to Abraham, to Isaac, and to Jacob. "Know, therefore, that the LORD your God is not giving you this good land to possess because of your righteousness, for you are a stubborn people.
One cannot understand John or Romans without understanding this principle-that we are stubborn and rebellious, even after we're saved. Trust me-I've tried.