Discerning Scripture

There was some discussion on adding or subtracting scripture as stated in Revelation.

I came upon a good example of how we must discern what happened without it actually being stated in scripture. Sometimes we are given the outline and not all the fine details but can, and should, discern them for ourselves. (Paul’s quote)

In Genesis 18:17, the Lord asked, "shall I hide from Abraham that thing which I do? " (the destruction of Sodom and Gomorrah)
We are never told in “written scripture” if the Lord did tell Abraham or not.

In verse 23, Abraham asks the Lord if He would still “destroy” the righteous with the wicked? This tells us that the Lord obviously told Abraham what the plan was. So, if we teach someone this logical fact, it is not adding to scripture, it is discerning it.

This is a very simple example and really of no consequence but there are others that have more weight in the understanding of the big picture.