If what you believe is not true, do you want to know it? Grandpa (or your widow) is not in heaven watching your every move. We [Christendom] made it up. Jesus said, "...no man has ascended up to heaven, but he that came down from heaven even the son of man..."
The law cannot justify us. Belief in Christ saves us... not a feeling, or a strong feeling; it's an acceptance of the authority of Jesus - so much so that we do what he said. Jesus said if we keep the commandments, we will hear the Word of God from the inside and be changed through obedience (regeneration).
Everyone will give an account of their life actions one day. If you do the truth, when your day before the judge, you'll say, "Bring it on." Judgment does not equal condemnation. Judge yourself daily. Make corrections. Do the truth. "Think red ink!"
Chapter 7: (Part 4)
JESUS' WORDS TO NICODEMUS
One night a Pharisee named Nicodemus, a ruler of the Jews, came to Jesus and said:
"Master, we know that thou art a teacher come from God; for no man can do these miracles that thou doest, except God be with him."
"Verily, verily, I say unto thee, 'Except a man be born again, he cannot see the kingdom of God."
Perplexed by the answer, Nicodemus asked:
"How can a man be born when he is old? Can he enter the second time into his mother's womb, and be born?
"Verily, verily, I say unto thee, 'Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God'. That which is born of flesh is flesh; and that which is born of the Spirit is spirit. Marvel not that I said unto thee, 'Ye must be born again.' The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not tell whence it cometh, and whither it goeth. So is everyone that is born of the Spirit.'"
"How can these things be?"
"Art thou a master of Israel, and knowest not these things? Verily, verily, I say unto thee, 'We speak that we do know, and testify that we have seen; and ye receive not our witness.' If I have told you earthly things, and ye believe not, how shall ye believe if I tell you of heavenly things? And no man hath ascended up to Heaven, but he that came down from Heaven, even the Son of man which is in Heaven.
"And as Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up; that whosoever believeth in him should not perish, but have eternal life.
"For God so loved the world, that he gave his only begotten son, that whosoever believeth in him should not perish, but have everlasting life. For God sent not his Son into the world to condemn the world; but that the world through him might be saved.
"He that believeth on him is not condemned; but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God. And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil. For everyone that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved. But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God."