Is Jesus the only way to Heaven?

Yes. Instances supporting this can be found throughout the New Testament. One of the most common verses is John 3:16, which ends saying that anyone who believes in Jesus has eternal life. In John 14:6, Jesus says that He is the only way anyone can get to Heaven, and no one can go any other way. Titus 3:4-5 tells us that Jesus is the one who saved us.

Even the Old Testament supports this, in Isaiah 45:21, which tells us that there is no other god besides our God. People may claim to worship other gods, but these gods are false. Jesus came to Earth, died, and came alive again, providing us with a way to heaven, and showing us that He alone has the truth. There’s only one way, and that’s with Jesus. He who has Jesus has life, and He who does not have Jesus, does not have life (1 John 5:12).

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Mark 16:16 — ~"He who has believed and has been baptized shall be saved; but he who has disbelieved shall be condemned.

John 1:12 — But as many as received Him, to them He gave the right to become children of God, {even} to those who believe in His name,

John 3:36 — ~"He who believes in the Son has eternal life; but he who does not obey the Son will not see life, but the wrath of God abides on him."

2 John 1:9 — Anyone who goes too far and does not abide in the teaching of Christ, does not have God; the one who abides in the teaching, he has both the Father and the Son.

John 14:6 — Jesus *said to him, "I am the way, and the truth, and the life; no one comes to the Father but through Me.

1 John 5:12 — He who has the Son has the life; he who does not have the Son of God does not have the life.

1 John 2:23 — Whoever denies the Son does not have the Father; the one who confesses the Son has the Father also.

John 3:16 — "For God so loved the world, that He gave His only begotten Son, that whoever believes in Him shall not perish, but have eternal life.

Titus 3:4-5 — But when the kindness of God our Savior and {His} love for mankind appeared,
He saved us, not on the basis of deeds which we have done in righteousness, but according to His mercy, by the washing of regeneration and renewing by the Holy Spirit,

Isaiah 45:21 — "Declare and set forth {your case;} Indeed, let them consult together. Who has announced this from of old? Who has long since declared it? Is it not I, the LORD? And there is no other God besides Me, A righteous God and a Savior; There is none except Me.