Mark 1:14-15
1:14 Now after that John was put in prison, Jesus came into Galilee, preaching the gospel of "The KINGDOM" of God,
1:15 And saying, The time is fulfilled, and "The KINGDOM" of God is at hand: REPENT ye, and believe the gospel.
Romans 3:23-25
3:23 For all have sinned, and come short of the glory of God;
3:24 Being justified freely by His grace through the redemption that is in Christ Jesus:
3:25 Whom God hath fore-ordained [to be] an atonement through faith in his blood, to declare his righteousness for the remission of sins THAT ARE PAST, through the forbearance of God;
John 5:14 Afterward Jesus findeth him in The Temple, and said unto him, Behold, thou art made whole: SIN NO MORE, lest a WORSE thing come unto thee.
John 14:15 If ye love me, KEEP my COMMANDments.
1 John 2:1-5
2:1 My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous:
2:2 And he is the atonement for our sins: and not for ours only, but also for [the sins of] the whole world.
2:3 And hereby we do know that we know him, IF we keep His Commandments.
2:4 He that saith, I know him, and keepeth NOT His Commandments, is a LIAR, and the truth is NOT in him.
2:5 But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him.
Christ's sacrifice on the cross was to pay for our PAST sins, NOT to grant anyone the freedom to sin with impunity.
Sinning is breaking God's Law, which anyone that is truly born again of God should be keeping and enforcing.
1 John 3:4-11
3:4 Whosoever committeth sin transgresseth also The Law: for sin is the transgression of The Law.
3:5 And ye know that he was manifested to take away our (past) sins; and in him is no sin.
3:6 Whosoever abideth in him sinneth not: whosoever sinneth hath not seen him, neither known him.
3:7 Little children, let no man deceive you: he that doeth righteousness is righteous, even as he (Christ) is righteous.
3:8 He that committeth sin is of the devil; for the devil sinneth from the Beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.
3:9 Whosoever is born of God doth not commit sin; for His seed remaineth in him: and he cannot sin, because he is born of God.
3:10 In this the children of God are manifest, and the children of the devil: whosoever DOETH NOT righteousness is NOT of God, neither he that loveth not his brother.
3:11 For this is the message that ye heard from the Beginning (Alpha), that we should love one another.