Where to begin. Even though BLASPHEMY can take a number of forms, there are two fundamental characteristics that will ALWAYS QUALIFY as blasphemy. One, claiming to be GOD and/or accepting worship as God. Two, claiming that you have the authority to forgive sins, an authority that solely resides within God‘s Own Sovereignty. Now, I don’t know if you accept the Scriptures as the absolute authority in your life. If you don’t, what I am about to say will matter little to you. If you do, maybe what follows will help. I will start by saying that your biggest challenge isn’t what church to go to. Your biggest challenge is by your own testimony you reject the Divinity of Christ - a rejection that is spiritually and eternally tragic. Since I don’t know your position on the Scriptures, I will be brief - however, if necessary and if wanted, I will present you with a much more comprehensive and detailed approach to this answer.
First: In John 20:28, the Bible says, “And Thomas answered and said unto him, My Lord and my God.” After Jesus Christ's resurrection, Thomas proclaims Him to be Lord and God! What's more, Jesus never rebukes Thomas, or anyone for that matter, for worshipping Him! If Jesus wasn't God, and yet He willingly received worship as God, that would make Him a crazed liar and blasphemer! Therefore He couldn’t be God’s anointed (Christ), or a prophet, or even a good man. He would have been a godless blasphemer worthy of death! Further, Jesus said, “If you have seen me you have seen the Father.” Jesus said, “I and my Father are one.” And on, and on, and on. Additionally, in John 1:1-5 the Bible declares that Jesus Christ was God (verse 1). In Colossians 1:15-17 the Scriptures tell us that Jesus Christ is the Creator God of Genesis Chapter One. And this just scratches the surface of the Scriptural evidence for the Deity of Jesus Christ.
Second: In Mark 2:1-7 we find Jesus Christ forgiving a man’s sins (verse 5) and in verse 7 you can see the reaction of some of the leaders known as scribes - I will quote verse 7: “Why doth this man speak BLASPHEMIES? Who can forgive sins but GOD ONLY?” (all caps emphasis is mine.) These Jewish religious leaders, who were educated in Scriptural matters, understood correctly that it was blasphemy to claim to be able to forgive sins - as you were placing yourself in the role as God! Again, if Jesus Christ was not God, as He Himself claimed to be - and as an abundance of other Scriptures claim Him to be - He was a charlatan, a deceiver, and of all men most evil.
But again, the Lord knows I am speaking reverently. Because there is no doubt in anyone’s mind who has given themselves to a careful and diligent study of the Scriptures that Jesus Christ was God manifest in the flesh - as told us in 1Tmothy 3:16. I hope this helps. I will be more than happy to provide more answers if desired.
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You are certainly correct. There is no question in Scripture, Tradition or in Church Teaching, that Jesus is God.
Here are scripture references in which Jesus Himself, makes that claim:
Matt. 4:7; Luke 4:12 - Jesus tells satan, "you shall not tempt the Lord your God" in reference to Himself.
Matt. 5:21-22; 27-28; 31-32; 33-34; 38-39; 43-44 - Jesus makes Himself equal to God when He declares, "You heard it said...but I say to you.."
Matt. 7:21-22; Luke 6:46 - not everyone who says to Jesus, "Lord, Lord." Jesus calls Himself Lord, which is God.
Matt. 9:2; Mark 2:5; Luke 5:20; 7:48 - Jesus forgives sins. Only God can forgive sins.
Matt. 12:8; Mark 2:28; Luke 6:5 - Jesus says that He is "Lord of the Sabbath." He is the Lord of God's law which means He is God.
Luke 8:39 - Luke reports that Jesus said "tell how much God has done for you." And the man declared how much Jesus did.
Luke 17:18 - Jesus asks why the other nine lepers did not come back to give praise to Him, God, except the Samaritan leper.
Luke 19:38,40 - Blessed is He who comes in the name of the Lord. If these were silent, the very stones would cry out.
John 5:18 - Jesus claimed to be God. The Jews knew this because Jesus called God His Father and made Himself equal to God. This is why Jesus was crucified.
John 5:21-22 - Jesus gives life and says that all judgment has been given to Him by the Father.
John 5:23 - Jesus equates Himself with the Father, "whoever does not honor the Son does not honor the Father who sent Him."
John 6:38 - Jesus says, "For I have come down from heaven."
John 8:12 - Jesus says "I am the light of the world." - 1 John 1:5 - God is light and in him there is no darkness at all.
John 8:19 - Jesus says, "if you knew me, you would know my Father also."
John 8:23 - Jesus says that He is not of this world. Only God is not of this world.
John 8:58 - Jesus says, "Before Abraham was, I AM." Exodus 3:14 - "I AM" means "Yahweh," which means God.
John 10:18 - Jesus says He has the power to lay down His life and take it up again - Gal. 1:1 - God raised Jesus to life.
John 10:30 - Jesus says, "I and the Father are one." They are equal. The Jews even claimed Jesus made Himself equal to God. Jesus' statement in John 14:28, "the Father is greater than I," cannot contradict John 10:30 (the Word of God is never in conflict). Jesus' statement in John 14:28 simply refers to His human messianic role as servant and slave, which He, and not the Father or the Holy Spirit, undertook in the flesh.
John 14:6 - Jesus says "I am the way, and the truth and the life." Only God is the way, the truth and the life.
John 16:15 - Jesus says, "all things that the Father has are Mine." Jesus has everything God has which makes Him God.
Those are just some. There are many more, but posting them all is tiring.
Amen.