Crow, I will just offer that when there seems to be conflict between 2 or more scriptures, it is US that have misinterpretted one or all of the scriptures. God is not the author of confusion. We may interpret confusion or conflict, but it is our fault. I tend to believe that if one scripture stands out as out of place with others, it is my understanding of the one or the others that is the problem.
In the case of does evangelism matter if God does the chosing, I would ask myself did Jesus misunderstand when he gave the disciples the great commission, since it is inconsistent with the verses of your OP? I would tend to look at my understanding of your OP verses, rather than trying to make the rest of the entire bible fit those two verses. Could be the wrong approach, but that's how I approach apparent conflicts in scripture. And there are quite a few "apparent" conflicts.
Oh, I agree with you totally, Jaime. The desire is to resolve the conflict, not expand it. The verses offered in the OP are very straightforward and clear, yet they confict dramatically with what I have (and want) to believe. But what has to be determined is if the error is in the view of those passages or the view of passages which conflict. One could rationalize that the evangelizing commissioned is for the betterment of life in this physical world and has nothing to do with who comes to be with God in eternity since He will get them there by His will alone. Or............................ one could rationalize it has everything to do with who comes to eternity with our Lord. As you can see from this thread, there is a dramatic division- and from this forum (and everywhere else) a dramatic division on many, many issue relating to faith.
Now, we can simply decide that the absolute truth cannot be found, feel certain that we are right while others are wrong, and just move on. Or, we can search for the truth.
Personally, I have found myself to be in error on other issues in the past, but was pushed to learn so those errors might be corrected. On this, I don't know if I was in error or am now being led to error. Only by searching can I, or anyone else, discover the truth.