All that the Father gives Me will come to Me, and the one who comes to Me I will by no means cast out. (John 6:37)
So, Calvinism must be true because God elects some to be saved, right? Actually, no. While at first this statement may seem confusing, it is actually rather simple.
In short, the word “all” is collective–it describes a group. “All” [the group] that the Father gives me will come to Me.” The whole group will come (which means to arrive).
In the next part of the verse, “the one” is the individual. Every individual in the group that comes to Jesus will arrive safely to Him. We could read the verse this way:
All [the group] that the Father gives Me will come to Me, and the one [the individual] who comes to Me I will by no means cast out. (John 6:37)
I like to compare this to a group of immigrants boarding a ship to the United States. The U.S. ambassador arrives at the dock and informs them that the whole group on the shop will be allowed into America without question, and none of the individuals will be turned away.
Watch this video for a more detailed explanation!