I take it that when people use the expression "effectual call" they are talking about a call that gets the desired results, not just an open invitation. So is there an "effectual call"? If one wants to say every call is universal, then these same scriptures make no sense. Therefore, from Romans 8:30 alone one can see that there is an effectual call. The above is all one needs to establish that there is an effectual call. But if one wants to establish from other scripture that there is a universal or general call, then obviously the effectual call must refer to someone else - a subset of those universally called, for example.