I believe that Jesus was referring to a literal needle in this teaching, rather than a small door. Here is my reasoning:
There is debate about this teaching by Jesus, about whether He is speaking of a literal camel going through the tiny hole of a needle, or if instead he was referring to the "Needle Gate" which was supposedly a very small entrance through the walls of Jerusalem. I personally lean on the first explanation and here is why:
First, there is no historical evidence that an actual Needle Gate even existed. That doesn't disprove anything, but it seems like more of a tradition and folklore than an actual fact.
Secondly, there was a similar idiom used in other parts of the world like "as impossible an elephant going through the eye of a needle." For Israel, the largest land animal was the camel, so it seemed like this was a Jewish version of this impossible phrase.
Finally, this Needle Gate was supposedly very difficult to get through. The camel would have to remove all of its baggage, then kneel low, and awkwardly crawl through the opening. And while it was difficult, it was certainly possible with enough hard work. I think that misses the overall point of Jesus' teaching.
Jesus was teaching that getting into heaven was impossible. That's especially true anyone who is relying on worldly treasures like money, fame, good works, or good morals. You'd be more likely to squeeze a huge animal through a tiny hole than find heaven through your own efforts.
The disciples heard this from Jesus and they were astonished. The Greek word literally means "at a loss of one's senses" to understand what just happened. They immediately asked, "Who then can be saved?" They were perplexed, confused, and probably discouraged at their own chances of ever seeing heaven one day.
But Jesus boldly responded, "With man this is impossible, but with God all things are possible." (Matthew 19:26)
That is the point of the whole phrase. It's not about a tiny hole that you can squeeze through if you try hard enough. It's an impossible action that you can never EVER accomplish without God. You cannot be saved on your own merits.
Being rich is not a sin, nor does God forbid anyone with money to enter heaven. However, anyone who has many earthly treasures may falsely believe that their life and wellbeing is secure. But the Bible is clear: apart from the finished work of Jesus, there is nothing that can be done to earn salvation.
[Kevin Carden]
Matthew 19:24 ... And again I say unto you, It is easier for a camel to go through the eye of a needle, than for a rich man to enter into the kingdom of God. ❤
