The Word of God - Rhema and Logos

I was listening to a sermon the other day on KHYM; I'm pretty sure it was Dr. David Jeremiah preaching.  At any rate, that week he had been going through Ephesians 6, about the armor of God.  His focus this time was on Ephesians 6:17: "And take THE HELMET OF SALVATION, and the sword of the Spirit, which is the word of God." 
Now, most times when we hear "the word of God", we think of the whole Bible, which is what the word 'Logos' means.  However, there is another word that is translated into the English language as "word" as well, and that is 'Rhema'.  Rhema is the word used in Ephesians 6:17, and "A rhema is a verse or portion of Scripture that the Holy Spirit brings to our attention with application to a current situation or need for direction." (Advanced Training Institute International online)
In other words, whereas 'logos' is the whole Bible, 'rhema' is talking about a specific verse or passage.  Knowing this, it brought a whole new light to the Ephesians passage for me.  To wield the sword of the Spirit, we don't just need to have our Bible handy at all times, but we need to actually know verses and passages that we can immediately bring up at the appropriate times. 
I just thought I'd share that; it's something I'd never known before and I found it very convicting!  It's amazing how much you can learn by getting into the etymology of words and finding out what they really mean!

Have a wonderful week, and a great Fourth of July!

Josie