In the last half century, an increasing number of professing Christians have been teaching and embracing a doctrine that is not supported by the Word of God. That doctrine is the teaching that one does not have to repent of one’s sins in order to receive Salvation.
The fact is, the Word of God does teach repentance of sin. In the book of Ezekiel, we read:

Ezekiel 18:21 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.

Ezekiel 33:14-16 Again, when I say unto the wicked, Thou shalt surely die; if he turn from his sin, and do that which is lawful and right; If the wicked restore the pledge, give again that he had rOBbed, walk in the statutes of life, without committing iniquity; he shall surely live, he shall not die. None of his sins that he hath committed shall be mentioned unto him: he hath done that which is lawful and right; he shall surely live.

Ezekiel 18:30 Therefore I will judge you, O house of Israel, every one according to his ways, saith the Lord GOD. Repent, and turn yourselves from all your transgressions; so iniquity shall not be your ruin.
The Hebrew word “shuwb”, is used for both the word “repent” and the word “turn” in the above verses. In other words, the two words are interchangeable. Repentance from sin is taught and encouraged by the prophet Ezekiel. One must repent of (turn away from) one’s sin.

Jesus told the Jews in Luke 13:3,5 “…except ye repent, ye shall all likewise perish.” Jesus Christ Himself taught a turning away from sin.
One might argue, “But Ezekiel was before the cross, Jesus told the Jews to repent prior to His crucifixion; now we need only believe on the Lord Jesus Christ to receive Salvation; repentance is not necessary.”

Again, that one would be wrong. The Apostle Paul taught the Church at Corinth:

2 Corinthians 12:21 And lest, when I come again, my God will humble me among you, and that I shall bewail many which have sinned already, and have not repented of the uncleanness and fornication and lasciviousness which they have committed.

The fact is, one must repent of one’s iniquities. Paul told the Church at Galatia that the works of the flesh would cause man to miss out on being in the kingdom of God. And the Apostle John wrote in the book of Revelation that those who do not repent of their abominations will have their part in the lake of fire and brimstone.

The doctrine that tells one they do not have to turn away from one’s sin is a doctrine of devils. Repentance from sin is necessary if one hopes to live eternally in Christ Jesus. Those who teach and preach that repentance from sin is not necessary are deceiving those who believe their false doctrine.

Galatians 5:19-21 Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness, Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies, Envyings, murders, drunkenness, revellings, and such like: of the which I tell you before, as I have also told you in time past, that they which do such things shall not inherit the kingdom of God.

1 Corinthians 6:9-10 Know ye not that the unrighteous shall not inherit the kingdom of God? Be not deceived: neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor abusers of themselves with mankind, Nor thieves, nor covetous, nor drunkards, nor revilers, nor extortioners, shall inherit the kingdom of God.

In Revelation 2, we see how Jesus (God) gave Jezebel time to repent of her sins, but she would not. And because she would not repent, God’s wrath was upon her… and still is to this day.

Now, some would say, “O, but God repented many times in the Old Testament. Are you trying to tell me that God sinned and had to repent? You are accusing God of being a sinner!” No, that is not what I am saying at all.

The Hebrew word used for when God repents is an entirely different word. When God repents of something, He is not repenting of sin. The Hebrew word used for when God repents is the word “nacham”. While “nacham” does mean to “turn”, it is not used in conjunction with “from sin” when relating to God.

1 Corinthians 10:21 Ye cannot drink the cup of the Lord, and the cup of devils: ye cannot be partakers of the Lord's table, and of the table of devils.
Paul admonished the Church at Corinth, telling them to turn from their sins. He reminds them that they cannot serve both God and the flesh. Like Paul, I encourage all to turn from their sins and turn to God.

Acts 17:30 And the times of this ignorance God winked at; but now commandeth all men every where to repent: