[Not A Snowbird]

According to Protestant teachings, if a person becomes saved, are his future sins forgiven?

That's what we're taught, yes.

Can a person lose his salvation?

No.

If not, can assurance of salvation become a license to sin?

No. If one's acceptance of Christ is true, then one will not wish to sin. We all transgress, of course, but deliberately going out and sinning because we think we have a free pass means that our conversion was not genuine.

[muawiyah]

Please don't confuse "saved by Grace alone" with the heresy known as antinomianism.

They're really, really, really different and are rejected by all real Catholics and Protestants (and Orthodox).

[MaggieM]

“No. If one’s acceptance of Christ is true, then one will not wish to sin. We all transgress, of course, but deliberately going out and sinning because we think we have a free pass means that our conversion was not genuine”.

While I am not of the belief “once saved, always saved” I do agree wholeheartedly with the above statement.

BTW, I love your tag line LOL

[Resolute Conservative]

I thought that if one blasphemed the Holy Spirit one was condemned. If you are saved and renounce the spirit you are refusing grace. All sins but one can be forgiven and that is a sin of the heart.

[Patriotic1]

We all transgress, of course, but deliberately going out and sinning because we think we have a free pass means that our conversion was not genuine.

I'll admit that the Prot. notion of 'once saved, always saved' struck me as hard to believe, but your explanation is a very good one.