The Wells of Salvation

There's an s on the end of the word wells. If you're crossing a desert, say from Egypt to the promised land, there better be more than one well. There are many wells. But what do we mean when we say that? What do we mean? Here's another clue from the text. Look at verse two. The glorious thing is that reality which we are now swept up into. It has happened to you. It will happen to you and we're in the midst of this glorious thing called salvation"