Synergism - monergism & 1 Cor 1:21

Synergism claims God is helped by man to do something, in particular, salvation. Monergism claims God does it all - salvation - by himself.

Man's free choice to receive Christ as savior, is considered by Calvinism as synergism - man helping God out. However, God does all the saving. God just chose to do all the saving for certain people. Calvinists claim God does choose to (or has chosen to) save only certain people. On the other hand, God himself claims he chose to save certain people also - specifically, those people that believe.

Salvation works like this. Man believes. Then God saves those that believe. Man does not save himself, God does the saving. God just chose to save the particular group of people that God himself specifically delineated in scripture - those that believe. Calvinists claim also that God saves some particular group, that they refer to as the "elect."

Logically, if God can choose to save one group for no criterion or reason known to man, and this is ok since it is God's choice, then...

... why can not God choose to save another particular group, which is based on a criterion of God's own choosing?

Having a criterion certainly seems more logical, more intelligent, than no criterion at all.

Obviously, if we grant the sovereignty of God that Calvinists claim to be so important, then God can choose to specify the characteristics of some group which He determines to save. This is precisely what God has done. The group is the believers.

... it pleased God ... to save them that believe.
- 1 Corinthians 1:21

The entire verse: 

1 Corinthians 1:21
For after that in the wisdom of God the world by wisdom knew not God, it pleased God by the foolishness of preaching to save them that believe.

For God to determine such certainly seems possible, since

1. with God all things are possible, and since
2. scripture tells us this, and since
3. it cannot be too "below God's standards" since
   1. Calvinism claims that God determines all kinds of things of much lower standards, such as much worse, and more horrible, things, such as every worse thing that ever has happened, and all horrible things that ever have happened!