The Bible identifies one unforgivable sin: Blasphemy against the Holy Spirit, which isn't a single act but a hardened, persistent rejection of God's Spirit, refusing to repent and accept Christ's forgiveness, essentially choosing eternal separation from God. While other sins (like murder or adultery) can be forgiven, blasphemy against the Spirit is the ultimate spiritual stubbornness, saying "no" to God's ongoing work of drawing people to Himself until death.
In Mark 3:29 Jesus says that “whoever blasphemes against the Holy Spirit will never be forgiven; they are guilty of an eternal sin.” Matthew's account adds that even blasphemy against the Son of Man will be forgiven, but not blasphemy against the Holy Spirit (Matthew 12:31–32).
Jesus Christ called the Holy Spirit "Spirit of Truth" (John 14:17; 15:26; John 16:13) and warned us, "All manner of sin and blasphemy shall be forgiven unto men; but the blasphemy against the Holy Spirit shall not be forgiven unto men" (Matthew 12:31).
However, God will not forgive "blasphemy against the Holy Spirit." One view of the difference between these sins (slander against Jesus and slander against the Holy Spirit) is that blasphemy against God's human messenger (Jesus) can be forgiven, but blasphemy against God's divine messenger cannot be forgiven.
'Assuredly, I say to you, all sins will be forgiven the sons of men, and whatever blasphemies they may utter; but he who blasphemes against the Holy Spirit never has forgiveness, but is subject to eternal condemnation,' because they said, 'He has an unclean spirit. '
In order of increasing severity according to Pope Gregory I, the seven deadly sins are as follows:
In paragraph 2094, the Catechism of the Catholic Church lists five sins against the love of God: indifference, ingratitude, lukewarmness, acedia and hatred of God.
Reserved Sins?
Yes God can forgive all sins. However He sees right into your soul and can tell whether you are just faking it because you don't want to be punished for your actions or whether you truly repent of your sins and believe in what Jesus did. If you truly believe in Jesus and repent of your sins then yes you will be saved.
Evil is anything that departs from God's good intentions in creation, breaks our relationship with God and our neighbor, or tries to take what does not belong to it. Run a Bible Word Study on the Hebrew word for “evil” in the Logos Bible Study app.
No one is too far gone. No one has out-sinned Jesus's willingness to forgive. The only thing more powerful than our sin is the life-giving, sin-cleansing grace of God. There is no sin too big.
The unforgivable sin isn't something you stumble into accidentally. It's the settled, defiant rejection of the Spirit's witness to Christ. If your sin grieves you and you desire His mercy, that itself is evidence that the Spirit is still at work in you. So turn to Him today and find rest in His forgiveness.
So now to answer the question, “Are sins of thought really as bad as committing the actual sin?” Yes. Jesus is clear. Praise God for that truth, because otherwise our sinful natures might convince us that we can do enough to enter heaven. The lesson of Jesus is that even our thoughts condemn us.
To blaspheme the Holy Spirit is to attribute the works of the Holy Spirit, in the lives of those He is working in, to the works of the devil. Luke 12:10 And everyone who speaks a word against the Son of Man, it will be forgiven him; but the one who blasphemes against the Holy Spirit, it will not be forgiven him.
6 Sins against the Holy Spirit
All sins and blasphemies of men will be forgiven them. But whoever blasphemes against the Holy Spirit will never be forgiven; he is guilty of an eternal sin” (Mark 3:28-29). Notice, there is a positive and a negative in what Jesus says.
There is never a reason to question whether or not God will forgive us. He always forgives us even from our worst sins. As long as we are sorry and go to Him for forgiveness, our sins will be forgiven. Never forget that Jesus died for us, for our sins, and for us to have the possibility of eternal life.
Act of Contrition (alternate form)
My God, I am sorry for my sins with all my heart. In choosing to do wrong and failing to do good, I have sinned against you whom I should love above all things. I firmly intend, with your help, to do penance, to sin no more, and to avoid whatever leads me to sin.
The simple answer is yes, God hears your prayers. An ever-present, all-knowing God will hear every word from your mouth, thought in your mind and whisper of your heart. But there are some things that might affect whether He answers.
GREED or AVARICE: The inordinate love of and desire for earthly possessions. Amassing a fortune and desiring to accumulate more than others is greed. Next to anger, lust and envy, more crimes have been committed due to greed than any other deadly sin.
VENIAL SINS: Speaking unkindly to or about others; Telling lies; Exaggerating the truth; Bragging or boasting; Flattery; Complaining, whining or attention seeking; Spreading rumors or tale bearing; Talking behind another's back; Being negative, critical or uncharitable in thought regarding others; Making rash judgments ...
If a woman has been involved in abortion, God does not require that she spend the rest of her life walking around with a red “A” on her chest. He does require that she repent of her sin and come to Him for the cleansing of forgiveness. When God forgives us, we are forgiven. When God cleanses us, we are made clean.
The second commandment forbids us using God's name in a disrespectful or hateful way. Like in false oaths or insults. When people say oh my God out of surprise at something shocking, good or bad, it's usually not sinful.
10 sins that often slip by as “OK” in our daily life:
There are six things the Lord hates, seven that are detestable to him: haughty eyes, a lying tongue, hands that shed innocent blood, a heart that devises wicked schemes, feet that are quick to rush into evil, a false witness who pours out lies and a person who stirs up conflict in the community.