Romans 5:
9Since we have now been justified by his blood, how much more shall we be saved from Gods wrath through him! 10For if, when we were Gods enemies, we were reconciled to him through the death of his Son, how much more, having been reconciled, shall we be saved through his life!
That of course does not mean that we will not pertake of some part of the tribulations, rather it does mean that we will not pertake of any part of the tribulation that is God pouring out His wrath.