Here is a Yahoo! map of 7917 E Boulevard Drive, Alexandria, VA 22308-1307
The church is on 5312 Backlick Road, Springfield VA.
According to Yahoo!'s driving instructions, it takes 24 minutes by car
to get there.
Another form of driving instructions is available at the University of
Maryland, College Park, site:
<http://mars.umd.edu/oa/Directions/STJohnMethodist.html>, with a map:
(sorry for the long link. If not everything in the brackets is a link,
copy it and paste it in your browser, in the adderss line).
More instructions in the Church's own site:
There are two Greyhound buses between the two towns, on 05:35 and on 10:05
The Ride Guide for Washington and Northern Virginia
<http://rideguide.wmata.com/index.html> could calculate a travel plan
for you using public transportation, including the fares, and your
priorities (it could minimize time, walking distance, or transfers).
I hope that helped. My search terms were:
On Yahoo! Maps <http://maps.yahoo.com>: I entered the address you gave me
On Google I searched for the address of the church, and also for
public transportation information.
Please contact me if you need any further clarification on this answer
before you rate it.