“Then why John 3:16?
If Jesus knocks and you don’t answer the door... What then?
Biblical evidence of free will yes?”
Not at all, since the presence of a command does not imply a moral ability within mankind to obey them. Amongst the commands is “sin no more,” and yet we do not have the free-will to cease sinning. Our wills, actually, are slaves to our sins. But not unwilling slaves, but voluntary slaves.
The Gospel is offered to all, but it is only believed by those by whom the Holy Spirit regenerates, “and that no man can say that Jesus is the Lord, but by the Holy Ghost” (1 Co 12:3), and again, “no man can come unto me, except it were given unto him of my Father” (John 6:65), and again, “And when the Gentiles heard this, they were glad, and glorified the word of the Lord: and as many as were ordained to eternal life believed” (Acts 13:48). If you had free will, you would not need the Holy Spirit to believe, since you are always able to make your own decision for right or wrong. But the Holy Spirit is necessary, because unless one is born again, they cannot even understand the scripture let alone believe in Christ (1 Co 2:14).
Bible was written in small words and short sentences. We like to make it more complicated than it is. The red letter stuff is lots of agricultural stories.
So you can take a knock on the door analogy and the choice of answering it and make it complicated? It does not say that Jesus and the Holy SWAT team no knocked with a warrant for arrest does it?