Matthew 5:17-20
17. Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil.
18. For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.
19. Whosoever therefore shall break one of these least commandments, and shall teach men so, he shall be called the least in the kingdom of heaven: but whosoever shall do and teach them, the same shall be called great in the kingdom of heaven.
20. For I say unto you, That except your righteousness shall exceed the righteousness of the scribes and Pharisees, ye shall in no case enter into the kingdom of heaven.
17-20 Let none suppose that Christ allows his people to trifle with any commands of God's holy law. No sinner partakes of Christ's justifying righteousness, till he repents of his evil deeds. The mercy revealed in the gospel leads the believer to still deeper self-abhorrence. The law is the Christian's rule of duty, and he delights therein. If a man, pretending to be Christ's disciple, encourages himself in any allowed disobedience to the holy law of God, or teaches others to do the same, whatever his station or reputationamong men may be, he can be no true disciple. Christ's righteousness, imputed to us by faith alone, is needed by every one that enters the kingdom of grace or of glory; but the new creation of the heart to holiness, produces a thorough change in a man's temper and conduct.
Would seem that Jesus, Peter and Paul agreed on the Gospel 100%. Paul gives you baby formula in Romans 10:9 and you still don't understand it.
Matthew 16:13-17
13. When Jesus came into the coasts of Caesarea Philippi, he asked his disciples, saying, Whom do men say that I the Son of man am?
14. And they said, Some say that thou art John the Baptist: some, Elias; and others, Jeremias, or one of the prophets.
15. He saith unto them, But whom say ye that I am?
16. And Simon Peter answered and said,
Thou art the Christ, the Son of the living God.
17. And Jesus answered and said unto him, Blessed art thou, Simon Barjona:
for flesh and blood hath not revealed it unto thee, but my Father which is in heaven.
That if you confess with your mouth, 'Jesus is Lord,' and believe in your heart that God raised him from dead, you will be saved. (Roman 10:9)