Here are other passages that would make it appear that salvation is conditional.

Luke 8:13
"Those on the rocky soil are those who, when they hear, receive the word with joy; and these have no firm root; they believe for a while, and in time of temptation fall away.
These are individuals who received and believed, but then fall away. The Bible talks about a great falling away. Cannot fall away unless you were 'in the way'.

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