Why do Christians call on the name of the Lord?

There is the basis, definition, history, purpose and practice of calling on the Lord in the website below:

http://www.callingonthelord.org/index.html

I think it's a really good site to share with our friends who might be wondering why we call on the Lord so much. There is even a chart http://www.callingonthelord.org/basis/ot.html which lists all the instances in the Bible where people called on the Lord's name.


http://www.callingonthelord.org/basis/ot.html -- old testament
http://www.callingonthelord.org/basis/nt.html -- new testament

Praise the Lord for such a simple way, we can turn to Him just by calling on His precious name. O Lord Jesus! :)