Here is what I learnt from the teaching of the doctrines of Christ. Kindly watch the video below.
There are two(2) kinds of sin:
Sin unto death and Sin which is not unto death.
Sinning against your fellow men is a sin not unto death because it's in his power to forgive you, but if a person is committing sin unto death, you should not pray for him anymore, we should rather expel him from the household of faith to avoid others from becoming defiled and wicked.
1 John 5:16 If any man see his brother sin a sin which is not unto death, he shall ask, and he shall give him life for them that sin not unto death.
Romans 1:32 Who knowing the judgment of God, that they which commit such things are worthy of death, not only do the same, but have pleasure in them that do them.
There are sins unto death which are sins that we against the Holy Ghost:
Blasphemy
Eating of blood
Fornication
Eating Food offered to idols.
Every other sin against God and man can be forgiven but the sin against the Holy Ghost cannot be Forgiven.
Matthew 12:31 Wherefore I say unto you, All manner of sin and blasphemy shall be forgiven unto men: but the blasphemy against the Holy Ghost shall not be forgiven unto men.
Matthew 12:32 And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come.
The sin of Fornication is also abominable in God's sight, that's why the bible says every other sin is done without the body but the sin of fornication is done with the body and the body is the temple of God. Because once you get baptized the body has become the temple of God, dwelling place of the Spirit of God it is no more yours.
1 Corinthians 6:18 Flee fornication. Every sin that a man doeth is without the body; but he that committeth fornication sinneth against his own body.
1 Corinthians 6:19 What? know ye not that your body is the temple of the Holy Ghost which is in you, which ye have of God, and ye are not your own?
1 Corinthians 6: 20 For ye are bought with a price: therefore glorify God in your body, and in your spirit, which are God's.
Avoid eating food sacrifice to idols, because it is a sin against God and it is prohibited by the Holy Spirit. It also defiles your conscience.
Idolatry is abominable before God. There are different forms of idolatry, idols are make out of silver, gold, stone, glass or wood and bowing to or worshipping them is practicing idolatry.
We should only worship God the creator because if you worship the creature and not the creator, you are involving in idolatry, some people make statue of Mary and pray to her or worship her while they forget that Mary herself is a creature and she worshipped the creator. We can give her the respect due to her as the mother of our Lord Jesus Christ not worshipping or praying to her. Idols are False gods.
Romans 1:25 Who changed the truth of God into a lie, and worshipped and served the creature more than the Creator, who is blessed for ever. Amen.
We should avoid eating food offered to idols
Acts 15:20 But that we write unto them, that they abstain from pollutions of idols, and from fornication, and from things strangled, and from blood.
Shalom!