Is Jesus Really the Only Way?

A lot of people believe that all “good” people go to heaven.
“After all, isn’t being good[1] what really matters? If someone is good and sincere in their beliefs then they should go to heaven. Plus, aren’t all religions basically the same?”[2]
“How could a good God allow people to go to hell?”
However, it should be asked, does God want those people to go to hell?[3] And has God provided a way for them to be saved? The answer to the first question we’ll see is no[4] and the answer to the second question is yes.
First, Scripture repeatedly says things like God desires all humans to be saved and come to the knowledge of the truth (1 Tim. 2:4). Here are three more:
“The Lord is… not wishing that any should perish, but that all should reach repentance” (2 Pet. 3:9).
“Have I any pleasure in the death of the wicked, declares the Lord God, and not rather that he should turn from his way and live?… For I have no pleasure in the death of anyone, declares the Lord God; so turn, and live” (Ezek. 18:23, 32).
“Say to them, As I live, declares the Lord God, I have no pleasure in the death of the wicked, but that the wicked turn from his way and live; turn back, turn back from your evil ways, for why will you die, O house of Israel?” (Ezek. 33:11).
So, God’s desire is for people to come to a knowledge of the truth of salvation in Jesus Christ and repent of their sins and be saved. That is God’s desire. However, that’s not it.
Second, God has also provided the way of salvation. The one God has provided the one way of salvation through the man Christ Jesus who is the one mediator between God and man (1 Tim. 2:5).
Imagine we were all on an island that a very wealthy and magnificent man owns. It is on fire and we all have to get off or we will die. Now, imagine that the owner of the island built a very large and sturdy bridge to the mainland so that people could escape. And in making the bridge he himself died.